Globaltowne Clearance Heaters

Globaltowne is always bringing in new and upgraded Bosch gas and electric tankless water heaters. Globaltowne currently has a few Bosch gas tankless water heaters on clearance.  These units are priced to sell to make room for new stock.  All of the Bosch tankless water heaters that Globaltowne sells are brand new and come with a full warranty.  There are many different BTU size units for all types of homes for both indoor and outdoor installations.  Please see the links below for the heaters on clearance.

Clearance Heaters
Bosch Integra 500 LP (Liquid Propane)
Bosch Evolution 500 NG (Natural Gas)
Bosch Evolution 500 LP (Liquid Propane)
Bosch Therm 660EFO NG (Natural Gas) Outdoor unit

Please visit our Globaltowne website at www.globaltowne.com for more information on the tankless water heaters and accessories.

Humphrey Preformed Mantle L13-2 for Model 9 Gas Lights

Humphrey Preformed Mantle L13-2 for Humphrey Gas Light Model 9 (1 mantle).  Cross reference part:  #8 Mantle.  The L13-2 is intended for use with Humphrey Burner Nose L12-2A.

The Humphrey Pre-formed Mantle L13-2 is intended for use with all model 9 Humphrey Indoor Gas Lights. Use in only stationary conditions such as buildings (not recommended for recreational vehicles).

The Humphrey Preformed Mantles also come as a 6 pack and the part number is L12-2-6pk (6 Mantles).

Determining Gallons Per Minute (GPM) of Water Flow from Household Fixtures

The flow rate of a faucet or shower head is measured in gallons per minute (GPM) and is a critical factor in sizing a Bosch tankless water heater, or for evaluating if an older fixture is wasting water.

The Federal Energy Policy Act of 1992 required all faucet and shower fixtures made the USA to have a flow rate of no more than 2.2 GPM at 60 PSI. Often you can get below 2.2 GPM with low flow aerators. However before 1992, older fixtures used much more water than 2.2 GPM, sometimes upward of 10 GPM. So before any calculations for water heater sizing can properly be done an accurate measurement of a fixture's flow rate should be done. If any fixture is much more than 2.2 GPM, it is a good candidate for replacement with a new code compliant water efficient fixture.

Here's how to quickly determine flow rate for a specific faucet or shower head:

Turn the fixture on to its normal position

Place a container under the fixture and collect the water for 10 seconds

Measure the quantity of water in the container and convert the measurement to gallons (e.g., 0.25 gallons)

Multiply the measured quantity of water by 6 to calculate the flow rate in gallons per minute (0.25 gal x 6 = 1.5 GPM).

For sizing of a tankless water heater you would want to determine the most applications (uses) at one time you would be using in the worst cases scenario.  As an example, You normally run 2 showers at the same time and the laundry going too.  Each shower flows 2.0 GPM and the Laundry flows 1.5 GPM so that would be a total of 5.5 gpm.  Using this calculation you can then find a unit that would give you at least 5.5 gpm with an output temperature of 116 degrees or better.  

You can call us at 888-726-9752 for help with sizing a Bosch tankless water heater.

Negative Air & Freeze Prevention for Bosch Tankless Water Heaters

Negative Air in the older Bosch naturally drafting units and the new Bosch tankless water heaters such as the Bosch Therm 520PN, 520HN and 330PN is something that needs to be considered when installing the tankless.

Negative air pressure in a structure occurs when air consumed by fuel burning appliances or exhaust systems in that structure exceeds the amount of air available.  Here is a list of items that consume air within a typical household:

• Stove exhaust fans
• Furnaces
• Water heaters
• Fireplaces/ Woodstoves are the worst as they consume a lot of combustion air
• Bath fans
• Dryers

All of these items must be taken into account when making provisions for a proper amount of fresh air from the outside.  If the building is new construction, air infiltration from the outside will be limited and provisions for extra air supply should be made. If the building is older construction, air may infiltrate into the house through unplanned sources such as window frames, door jams, sill plates or idle chimney flues. These sources still may not be providing the adequate amount of air and additional sources of fresh air should be considered.

Why Negative Air Is Bad

Cold air from the outside is drawn through the water heater’s flue pipe because other fuel burning appliances or exhaust systems in the structure require more air than the dwelling can supply. When the required amount of air for the fuel burning appliances or exhaust systems in the structure is not being supplied to them, they find the flue pipe on the water heater an acceptable means of supplying themselves. Thus, freezing cold air is pulled down the water heater’s flue, drawn over the copper heat exchanger, potentially freezing it and the water valve below. Because, when idle, the water heater holds only cold water, freezing can happen quickly possibly causing leaks or ruptures in the heat exchanger and/ or the water valve. The water heater does not pull air through its flue pipe – if you were to remove the heater, the air would continue to come down your flue pipe. You must have the air balanced in the structure to correct this problem. Consultation with a heating, ventilating and air conditioning (HVAC) specialist is recommended.]

There is also another alternative to combat negative air for the Bosch 1600P, 1600H, 520PN and 520HN naturally drafting heaters and that is to use the AQ4 powervent kit.  The AQ4 powervent kit is for venting the appliance out the sidewall of the building and comes with a termination hood with built in flapper to keep the cold air from coming in when the heater is not being used.  The AQ4 powervent kit requires power to operate the blower motor which blows the exhaust gases to the outside.  The AQ4 powervent kit is not approved for the older Bosch 1000P and the new Bosch Therm 330PN as the unit is not large enough to use the powervent motor.

All larger Bosch tankless water heaters that are direct vent units meaning they have a built in fan, are sealed combustion and have the ability to take the intake air from the outside should always use this method and take the combustion air from the outside in all cold climate areas.

Bosch Thermotechnology Production Milestone of 20 Million Water Heaters

Bosch Thermotechnology Production Milestone of 20 Million Water Heaters.

Bosch Termotecnologia S.A’s Aveiro plant, 70 kilometers south of Porto in the northwest region of the country, passed the 20 million mark in production of gas-fired water heaters this past fall. Vulcano brand gas water heaters are the market leader for tankless water heater technology and are sold throughout Europe and exported to North America where they are sold under the Bosch Greentherm brand name. In the U.S. Greentherm water heaters are ENERGY STAR rated products. 

GreenTherm tankless water heaters are wall-mounted gas condensing water heaters and ENERGY STAR rated with an energy factor of 0.95 with venting options to fit any installation requirement.

Bosch has been manufacturing in Portugal since 1911 and at the Aveiro facility since 1977. At Aveiro it currently employs about 1,000 associates in R&D and manufacture of water heater products for both residential and commercial applications. The company celebrated the milestone production achievement on October 29th with Bosch Thermotechnology Portuguese and German representatives on hand to mark the occasion. The international Bosch Group operates five facilities in Portugal for automotive, industrial, construction and household and business use technologies and employs over 3,000 people, making it one of the largest industrial employers in the country.

1.866.289.4652

Bosch Therm 330PN Replacing the Bosch Aquastar 38B

The Bosch Therm 330PN gas tankless water heater is a point-of-use water heater designed to provide instant hot water for two sinks. It can, in some locals be used to provide hot water for a single low flow shower.  

The Bosch 330PN is 75,000 BTU's and can deliver 2.6 GPM of hot water at a 45 degree F temperature rise. A regular shower head delivers about 2.0 - 2.5 GPM, so the Bosch 330PN is right on the edge for delivering water for a hot shower.

However, if you live in a warm climate, such as Texas, Southern California, Florida, Arizona, etc, then you probably do not need to raise the water temperature by 45 degrees, so the 330PN can work for a single shower.

Also, if you use a low-flow shower head that reduces your flow to say 1.5 GMP, then again you can have a hot shower with the Bosch 330PN.

We would not recommend the Bosch Therm 330PN for a regular flow shower head in New York -- it just will not be able to keep up and provide you with a hot shower due to the cold incoming water.  The Bosch Therm 330PN is not designed or approved for preheated inlet water..
The Bosch 330PN is a good replacement for the older Bosch Aquastar 38B. The 38B was 40,000 BTU's and only delivered about 1.3 GPM at the same 45 degree F temperature rise. So, the 330PN really is a much stronger water heater than the 38B ever was!

The Bosch Therm 330PN takes the same 4" venting as the 38B did and must be vented vertical up through the roof.  The 330PN CANNOT be powervented out the sidewall of the building.

The Bosch 330PN comes in both Natural Gas (NG) and Liquid Propane (LPG) models.

The Bosch 330PN is designed for heating potable water only and is not approved for space heating applications.

Humphrey Tie-On Burner Nose L12-11A Back in Stock!

For over a year the manufacturer has had the Humphrey Tie-On Burner Nose (L12-11A) on backorder.

As of today we again have this Humphrey / Paulin replacement part in stock!

Order online at www.globaltowne.com.

Procedure for Programming The Wireless Remote TSTAT2

The Bosch Wireless Remote Control (TSTAT2) is used to remotely control the temperature of the Bosch Therm tankless water heater. The TSTAT2 does NOT have the ability to remotely reset the Bosch Therm hot water heater. Below is a more in depth procedure for installing the remote control.

The Bosch Wireless Remote Control (TSTAT2) is designed to work with the following Bosch Therm Tankless Water Heaters: C 1210 ESC, C 1210 ES, C 920 ESC, C 920 ES, C 1050 ES, C 800 ES, Integra 500, C 950 ES, 940ES, 940ESO, 715 ES, Evolution 500 and 830ES as well as the Bosch AquaStar 2700ES and 2400ES heaters.

TSTAT2 Remote Control Installation:

On the "heater" control panel, press and hold Program key while
pressing the ON/OFF button to ON.  Release program key when LCD
displays “188”.  LCD shows “P2”. If not, repeat previous step.

1. Press the + button on the heater to select "P3".  Press and hold Program 
key again for 1 sec.  LCD shows one number and one rotating digit. If not, 
repeat previous step.

The number represents the remote control which is to be registered, the
first remote control will be registered with number “0”, the second with
number “1” and so on.  The rotating digit shows that the electronics is 
expecting a registration and waiting for response from wireless remote.  
If the LCD fails to show a number and rotating digit after repeated attempts, 
double check the wire connections made in section 5.1.

2.  Hold wireless remote control in front of the control panel on the heater and
simultaneously press remote control buttons until the temperature indication 
is shown on the remote control LCD.

3.   Press ON / OFF button on the front of the heater to OFF position and then
back ON.

4.  Press buttons + or - on the remote to reach desired temperature.

New remote control is programmed.

To program a 2nd or 3rd remote to the same heater, follow the steps above and 
then after the remote is programmed you will be able to use the first or 2nd or 
3rd remote to raise or lower the temperature on the heater.  Please remember
the remotes cannot be used to reset the heater if an error code should appear.

PCB Boards for Powerstar AE-115 & AE-125 Electric Tankless

Bosch has made many upgrades and improvements to the Bosch Powerstar AE-115 and Powerstar AE-125 electric tankless water heaters.  One of the main improvements is in the Printed Circuit Board (PCB) that basically controls the heater.  Below is a list of the older and newer Powerstar AE115 & AE125 PCB board part numbers and the cutoff dates.

Older Powerstar AE-115 & AE-125 with Copper Canisters and serial number BEFORE #59:
AE-115 PCB Board - #93-793777
AE-125 PCB Board - #93-793778

Powerstar AE-115 & AE-125 with Polymer Modules and serial number 60 through 107:
AE-115 PCB Board - #93-793843
AE-125 PCB Board - #93-793844

New Powerstar AE-115 & AE-125 with Polymer Modules and serial number 108 and above:
AE-115 PCB Board - #8738701732 (87387017320)
AE-125 PCB Board - #8738701738 (87387017380)

New Bosch Powerstar AE-115 & AE-125 Electric Tankless

Bosch Powerstar AE-115 & AE-125 Electric Tankless Water Heaters

Ideal for replacing your electric storage tank water heater. The Bosch Powerstar AE-115 & AE-125 electric whole house tankless water heaters are compact and powerful and can be installed virtually anywhere inside the home. Advantages include endless hot water, reduced electricity costs and substantial space savings.

Designed to replace a 20 - 40 gallon electric tank. The Bosch Powerstar AE-115 & Bosch Powerstar AE-125 electric tankless water heaters are built to last. Each heater module is protected by an electro-mechanical thermal cut-out. If the temperature of any of the heater modules gets too high (over 195 degrees), then the cut-out will trip and cut the power to that heater module. If the cut-out trips, it must be reset while the circuit breakers are off. If you are not comfortable or qualified to perform this task, consult the original installer or a licensed electrician. This cut-out will only trip in exceptional circumstances. They have Plastic Polymer Modules and brass fittings. These small electric tankless water heaters can be installed virtually anywhere in the home and, of course, produce an endless supply of hot water.

There are many changes in the new Powerstar AE-115 and the AE-125 compared to the older models Powerstar AE-115 & AE-125.

The improvements for the New Bosch Powerstar AE-115 & AE-125 are:

• The units overall height is shortened by 3 inches due to reconstruction and placement of the main PCB board in the bottom of the unit.  (AE115 PCB Board #8-738-701-732 (87387017320), AE125 PCB Board #8-738-701-738 (87387017380).  These PCB boards are required for all new Powerstar units with serial number beginning with 108 and higher.
• The Heating element assembly modules inside the unit have been redesigned to change the flow of the water in the modules to a different angle so as to not allow the mineral deposits to build up on the elements.
• There has been new single triac and dual triac PCB boards attached to the top of the heating modules as to give the heater more sensibility and maintain a more consistant heat.  (Single Triac PCB #8-738-701-733, Dual Triac PCB #8-738-701-723).
• The Thermal Cutouts on the top of the heating modules have been redesigned to trip at a little lower temperature of 195 degrees F to keep the elements from being damaged and overheating and hurting the piping and modules.

The minimum activation rate required for the unit to activate. (Activation rates: AE-115 = 0.6 GPM, AE-125 = 0.8 GPM).

The AE115 & AE125 are designed for cold potable water only. These water heaters are not designed for preheated water or recirculation applications. Increase flow rate where ever possible if water is coming out too hot.

Verify incoming water supply is at least 30psi. For people on well systems, the recommended pressure range is 30-50psi.

Maximum flow rates for each unit are as follows. AE-115 = 2.3gpm, AE-125 = 3.5gpm.

Danfoss Electric Floor Heating – LX Mats

LX Floor Heating Mats, 120V - 240V

Danfoss LX Electric Floor HeatingSystem (Self-Adhesive Mat & Thermostat) is an affordable luxury that brings warmth to life. It's a proven technology that is safe, reliable, and energy efficient. The unique adhesive system saves 70% on installation time!

• Pre-applied heating cable means even heat every time

• Dual-adhesive backing, no fastening required

• Single point connection

• Twin conductor cable

• Eliminates EMF’s (electromagnetic fields)

• Customize mat on the job site

• Minimal thickness-only adds 3/16” height to the floor

• Safety approved for wet locations (Under Showers)

• Even heat every time

• No fastening required

• Genuine ten year non-prorated warranty, includes labor and materials

• Do not cut the RED wire.

Danfoss Mats are easy to install.  They are best installed under tile, or other ceramic material as the heat transfer is excellent.  A layer of insulation should be installed below the mat.  A plywood sub floor can work for this as wood has poor heat transfer characteristics and will “force” the heat up to the more conductive ceramic.  Conductive heat, like electricity, will take the easiest path available whether is be up, down, or sideways.  Air, water, wood and other insulation's are poor heat conductors and thus block the movement of heat transfer. 

(Heated air rises with it's convection heat.)

Before installing the mats measure the space to be heated.  Be sure to measure the Square footage of any built-ins as well and subtract from the rooms actual square footage, no need to heat under cabinets or behind a toilet. Though you can heat under a tile shower stall.  Also, no need to measure from wall to wall as the heat will “migrate” 3-4 inches from the mat and you cannot walk or stand within 3-4 inches of a wall. Once the square footage is known, pick a mat or mats with LESS square footage than you need.  A mat that is too large will not be able to be installed as the heating wire CANNOT be cut, only the mat mesh can be cut.  If the square footage is 100, use a 90 sq. foot mat if is it 20, use the 17.5 square foot mat.

DO NOT CUT THE RED WIRE.

The Danfoss Warranty requires Ohm readings be listed on the warranty card. Measurements need to be done with an Ohm meter and taken before, during and after installation.  These readings insure that the wire has not been cut or nicked and will have the required resistance needed to heat the floor.  Please see the manual for the detailed instructions.

The mats come in 120 and 240 volts.  The smallest mats are 120 volts and the largest are 240 volts and there is an overlap in the middle sizes.  All the mats are 7 amps or less of current draw (amps).  Most home circuits are 15 amps, so this allows up to 2 mats per circuit.  Additional electrical circuits are required if more than two mats are needed.  The mats cannot be connected in series, this will result in very low wattage output and an unsatisfactory result for the home owner. However, it will not harm the mats.

Danfoss can provide thermostats for their mats.  The thermostats can be used with either 120 volts or 240 volts.  All the Thermostats can control 2 mats and the mats must be the same voltage.  DO NOT CONNECT A 240 VOLT AND 120 VOLT MAT TO THE SAME THERMOSTAT.

There are three Thermostats and a Power Module:

088L5130 – LX programmable Thermostat with Floor Sensor – MOST POPULAR

088L5132 – LX Programmable Thermostat with Air Sensor – Use with non-ceramic floors

088L5133 – LX Non-programmable Thermostat with Floor Sensor

088L5135 – Danfoss Power Module – Use with Programmable mats only

The Danfoss 088L5130 Thermostat should be used in most applications; kitchens, bathrooms entryways and sunrooms where ceramic or concrete floors are installed.  The thermostat is programmable.  It can be programmed for on/off times during the workweek and different on/off times for weekends. When setting the thermostat, it is set for the time you want the floor warm.  The Thermostat will “learn” how long it takes and turn it self on with enough time so that the floor is warm at the prescribed time. This will take a few on/off cycles to be accomplished or “learned”.  The thermostat is rated at 15 amps on either 120 volts or 240 volts.  The thermostat is also a Class A GFCI.  This protects humans and animals from a ground fault if a mat is damaged plus meets required codes for GFCI’s in bathrooms and kitchens where water faucets exist.

(A ground fault is when a damaged electrical circuit and water cross paths.  The GFCI senses the loss of current and immediately shuts off the circuit before a shock can happen.)

THE DANFOSS 088L5132 thermostat is used when an LX mat is put under a wooden floor, laminate floor or carpeted floor or when using floor heat as the main heating source in the home or apartment.  The Danfoss 088L5132 has an air sensor for primary control and a floor limiter so that the floor does not get too hot.  A wooden floor can be dried out using under floor heat.  Laminate floors and lose their adhesiveness if they get too warm. If these conditions exist the O88L5132 can be used, but the Danfoss O88L5130 should be the first choice of thermostats.

The Danfoss 088L5133 thermostat is the low end thermostat that is not programmable.  It is a manual thermostat that requires human intervention to turn on and off.  Best used in rooms that are not used on a daily basis or need heat on a daily basis.  The power module CANNOT be used with the Danfoss O88L5133 thermostat.

If more than 2 mats are needed for a specific area, the Danfoss power module can be added to the system to switch on another 1 or 2 mats.  The power module is connected to the 088L5130 or 088L5132 thermostat by two wires for the control.  The Power Module does need to have its own electrical circuit to power the mats. The power module also includes a Class A GFCI.  Up to 5 power modules can be used with a single Thermostat. Each mat provides up to 15 amps of switching capability, either 120 or 240 volts.  On a side note, the power module can switch a different voltage from the main thermostat.  For example, the thermostat can switch 120 volt mats and the power module can switch 240 volt mats.

DO NOT CONNECT a 240 volt AND 120 volt mat to the SAME POWER MODULE.

The Danfoss Little Buzzer or Continuity alarm is used during installation and will let the installer know if the electrical circuit is good.   If the heating cable is cut or damaged the Little Buzzer will sound an alarm.  Batteries ARE included with the DANFOSS “Little Buzzer”.

DO NOT CUT THE RED WIRE.

Z-Vent Stainless Steel Venting for Marey 5L, 10L & 16L Tankless Water Heaters

Globaltowne is a supplier of Z-Flex Stainless Steel Venting material and carries a large variety of sizes ranging from 3" - 24" single wall stainless Steel venting.  Globaltowne can also get 3" - 24" diameter double wall stainless steel venting.  Marey Gas Tankless Water Heaters come in 3 different sizes from a small 5 Liter gas tankless, a 10 Liter gas tankless and a 16 Liter gas tankless.

All venting must be done in accordance with local codes and regulations. Local building codes from city to city and state to state will vary. Some jurisdictions may allow venting material not allowed by other jurisdictions.

All jurisdictions in North America allow for Z-Vent material to be used for venting tankless hot water heaters. The condensation of a tankless water heater is slightly more acidic than that of a standard water heater. Z-Vent is double walled stainless steel vent pipe made specifically for venting tankless heaters. Z-Vent is intended for lifetime use and will never corrode or rust.

Some jurisdictions in North America allow for B-Vent to be used. B-Vent is double walled galvanized vent pipe made for standard water heaters and stove vent pipe. B-Vent is not lifetime material and will eventually corrode after extended use. Before deciding what material to use, you MUST check your local building codes to see what is allowed in your jurisdiction. If you choose to use B-Vent, you MUST check it at least monthly for corrosion and replace vent pipes immediately if corrosion is detected.

Diameter of the vent pipe is 4” for 5L, 4” for 10L, and 5” for 16L units. Use the coupler provided with your unit for installation on the 5L and 10L units. Vent pipe attaches directly to the unit in 16L models.  For the 16L tankless when using the Z-Flex stainless steel venting you may also need a 5" stainless universal adapter and then a 5" single wall to double wall stainless adapter if you are going to use 5" double wall stainless steel venting.

For more information about the venting material you may need for your Marey tankless water heater, please consult the Marey Corporation or refer to the installation manual with the heater but the most important fact is to check what your local code requires!!

To order any of the Z-Vent single wall or double wall stainless steel venting pipe, adapters etc.  please call us at our toll free number 888-726-9752.

Hydronic Testing of Bosch Gas & Electric Tankless Water Heaters

All of the Bosch gas and electric tankless water heaters are tested from the factory before shipping.  The Bosch tankless water heaters are pressure tested for functionality, operation and leaks.  Bosch always ensures that the Bosch tankless water heaters are 100% reliable and operational when they leave manufacturing.

When Bosch has finished testing the gas & electric tankless heaters they will then place colored caps (red for electric tankless or yellow for the gas tankless) on the water inlet and outlet of the heater to prevent any residual water from damaging the insides of the unit and the box it is packed in.

Please see the image below that shows the caps on the bottom of a gas tankless water heater.

Humphrey Indoor Gas Light Accessories

Globaltowne carries a full list of accessories and replacement parts for the Humphrey Indoor Gas Lights. We have large quantities of the Humphrey Indoor Gas Light Accessories, including replacement globes, preformed mantles, tie-on mantles, burner noses, nozzles and much more.  Please see below for descriptions and a link to each part.

The Humphrey Half Frosted Pyrex Replacement Globe L6-20A is intended for use with all of our Model 9 and 9T Humphrey Indoor Gas Lights. The Humphrey Half Frosted Pyrex Replacement Globes are also sold in a pack of 6 Globes L6-20A-6PK (6 Globes).

Humphrey Preformed Mantle L13-2 for Humphrey Gas Light Model 9 (1 Mantle). The Humphrey Preformed Mantle L13-2 is intended for use with all Model 9 Humphrey Indoor Gas Lights.  Use only in stationary locations such as buildings (not recommended for recreational vehicles).  The L13-2 preformed mantle is intended for use with burner nose L12-2A.  Please note that Humphrey Indoor Gas Light part numbers that begin with 9T do not use preformed mantles.  The Humphrey Preformed Mantles are also sold in packs of 6 and are L13-2-6PK (6 Mantles).

The Humphrey Tie-On Mantle L13-6 and sold as L13-6-5PK (5 Mantles) is intended for use with all of our Model 9T Humphrey Indoor Gas Lights.  The L13-6 is intended for use with burner nose L12-11A.  Please note that Humphrey Indoor Gas Light part numbers that begin with 9 (not 9T) do not use tie-on mantles.  The Humphrey Tie-On Mantle also comes in a pack of 25 and is L13-6-25PK (25 mantles).

The Humphrey Clip-On Mantle L13-8 and sold as L13-8-5PK (5 mantles) is intended for use with all of our Model 9T Humphrey Indoor Gas Lights.  The L13-8 is intended for use with burner nose L12-11A.  Please note that Humphrey Indoor Gas Light part numbers that begin with 9 do not use clip-on mantles.  The Humphrey Clip-On Mantle also comes in a pack of 25 and is L13-8-25PK (25 mantles).

The Humphrey OPK Pendant Kit is used for mounting all Humphrey Indoor Gas Lights to the ceiling.  The pendant kit contains parts to mount 1, 2, or 3 gas lights.  Please note that all gas lights are sold separately.

The Humphrey High Altitude Nozzle for Humphrey Gas Lights L9-52A is for use on all Humphrey Propane Gas Lights above 4,500 feet.

The Humphrey Replacement Burner Nose Seal L24-15-6PK (6 seals) is a gasket for use with either Burner Nose L12-2A or Burner Nose L12-11A.  Please note that the replacement seal (L24-15) must be replaced anytime the burner nose is removed after the lamp has been used.

The Humphrey Bunsen L10-71A is the part between the nozzle and the burner nose.  This part will work with both the Humphrey 9 and 9T series of Gas Lights.

Humphrey Indoor Gas Lights

Globaltowne now has all of the Humphrey Gas Lights in stock.  We have large quantities of these Humphrey Indoor Gas Lights available in a variety of colors, including Rustic Walnut, Hunter Green, Pebble Gray and Natural Almond.  We have both preformed mantle lights as well as tie-on mantle gas lights.

Below is a full list, model number and color of all the Humphrey Gas Lights:

Humphrey Gas Lights (Preformed Mantle)

                  Humphrey Indoor Gas Light - Polished Brass (9HPB) 

                  Humphrey Indoor Gas Light - Classic Chrome (9CC)

                  Humphrey Indoor Gas Light - Pebble Gray (9PG) 

                  Humphrey Indoor Gas Light - Hunter Green (9GR)   

                  Humphrey Indoor Gas Light - Natural Almond (9NA)     

                  Humphrey Indoor Gas Light - Rustic Walnut (9RW)   

Humphrey Gas Lights (Tie-On Mantle)

                  Humphrey Indoor Gas Light - Polished Brass (9THPB)

                  Humphrey Indoor Gas Light - Classic Chrome (9TCC)

                  Humphrey Indoor Gas Light - Pebble Gray (9TPG)

                  Humphrey Indoor Gas Light - Hunter Green (9TGR)

                  Humphrey Indoor Gas Light - Natural Almond (9TNA)

                  Humphrey Indoor Gas Light - Rustic Walnut (9TRW)

We also carry a large supply of Humphrey Gas Light Accessories, including preformed mantles, tie-on mantles and clip on mantles.  We also carry burner noses, seals, spare globes and pendant kits.

Humphrey Gaslights are currently manufactured by Midstate Lamp, but in the past they were manufactured by Humphrey Products and by Paulin Products.

Bosch Therm 330PN is the Direct Replacement for Bosch 1000P

The new Bosch Therm 330PN is the direct replacement for the retail model Bosch 1000P.  Bosch is no longer making the retail model heaters and is only selling wholesale versions.  The Bosch 330PN comes in either Natural Gas (NG) or Liquid Propane (LP).  The only difference between the 330PN and the retail model 1000P is the color of the front cover.  The 330PN has a silver cover as the older 1000P had a white cover.  All of the other specifications are the same.

Specifications for Bosch Therm 330PN:

• Piezo ignition system requires no electrical connection
• 78%+ thermal efficiency
• 75,000 BTU maximum input
• 3.3 gallons per minute capacity at 35F degree rise
• Endless hot water for 1 application at a time
• Minimum activation flow rate of 0.5 gallons per minute
• Minimum of 30 psi water pressure required
• High to low temperature control
• Vents with 4" galvanized B vent – natural draft
• Built for durability and serviceability with 15-year warranty and 20+ year life expectancy
• Available in NG and LP models

The Bosch 330PN is also a good replacement heater for the older Aquastar 38B as they both are similar in BTU size and both take a 4" vent pipe.

The Bosch 330 PN could also replace the older Paloma PH6.  The 330 PN is 75K BTU and the PH6 was 43,800 BTU but both heater are good for small applications for camps and cottages.  The 330PN takes a 4" vent pipe like the PH6 did.  Please be aware that the 330PN requires a minimum of 30 psi of water pressure.

Service Bulletins for Older Bosch Aquastar Gas Tankless Water Heaters

Bosch has a series of service bulletins for the older retail model Bosch Aquastar and also the compact models such as the 1600P & 1600H.  These service bulletins can be very helpful with installation questions and when having issues with the Bosch tankless water heater.

Service bulletins can help with fixing an issue or with servicing your Bosch tankless water heater.  Please keep in mind and be safe when working on a gas appliance.  You can also contact Bosch directly or have you service agent contact Bosch technical support at 800-642-3111.

Link to:
G3 Service Bulletins for GWH 2700 ES and GWH 2400 ES

CT Service Bulletins for GWH 1000 P, 1600 P, 1600 H

G2 Service Bulletins for GWH 2400 ES/ESO, 250SX/SXO

AquaStar 38B, 125 Series Gas Tankless

AquaStar VP Series Service Bulletins

 AquaStar 240FX Service Bulletins 

Installing Bosch Gas Tankless Water Heaters in Bathrooms & Bedrooms

It is very dangerous to install a Bosch gas tankless water heater or any other gas appliance in a bathroom or bedroom that draws it's combustion air from that room.  Any Bosch gas tankless water heater or gas appliance that is naturally drafting and draws it's combustion air to burn from the room it is installed would deplete the oxygen in the room and cause asphyxiation.  The only Bosch gas tankless water heaters that are approved for installation in a bathroom or bedroom would be the direct vent ones.  The direct vent units are a twin pipe system and exhaust their gas to the outside and also take their combustion (intake) air from the outside.  Any direct vent unit installed in a bedroom or bathroom MUST take the combustion air from the outside.

It is against National Fuel Gas Code (NFGC) section 10.28.1 to install a gas fired appliance in a bathroom or bedroom where the door is normally kept closed.  This refers to all gas appliances that take their combustion air directly from the room they are in.  The only time a naturally drafting gas appliance shall be installed in a bathroom or bedroom is if they are installed within a closet with a self closing weather-stripped door with no openings.  All combustion air shal be obtained from the outdoors in accordance with section 9.3.3 of the NFGC.

Please also consult your local codes and local inspector for a safe installation.  Remember it is your life!

Bosch AquaStar 125X Water Valve Assembly (Conversion Kit)

The Bosch AquaStar 125X Water Valve Assembly Conversion Kit Part number 8707002810 is the 

replacement Water Valve assembly for all Bosch AquaStar 125X tankless water heaters.

This part is also is the replacement Water Valve for Bosch AquaStar 125FX tankless water heaters starting 

with a serial number of 380 or lower.

Bosch Aquastar 250SX/250SXO Water Valve with Engine

The Bosch Aquastar model 250SX/250SXO water valve with engine part number 8708505018 (old part number 8708505016) is the replacement watervalve for all Bosch Aquastar model 250SX/250SXO tankless water heaters.

This is also the replacement water valve for the Bosch Aquastar 2400E tankless water heater.