GlobalTowne carries all the 3" stainless steel Z-Flex venting needed for venting the Marey 16L ETL tankless water heater. The Marey 16L ETL gas tankless water heater must be vented with 3" single wall stainless steel venting. Please be sure that when installing the Marey 16L ETL that you start with the 3" Universal Adapter part number 2SVSNA03.5 on top of the heater. The universal adapter makes for a much easier installation and is needed for attaching the 3" stainless steel venting.
The Marey 16L ETL is a direct vent unit and must be vented to the outside. The Marey 16L ETL cannot be common vented or vented into a chimney. The Marey 16L ETL can be vented horizontally out the sidewall or vertical up through the roof. If venting horizontal out the sidewall make sure to angle the venting a 1/4" per foot. When venting vertical up through the roof you must use a Vertical Condensate Drain Tee part number 2SVEVWCF03 and a Condensate Drain Tube Kit 24" part number 2SVEDTK24.
Showing posts with label 3" stainless steel venting. Show all posts
Showing posts with label 3" stainless steel venting. Show all posts
Monday, October 26, 2015
Monday, August 3, 2015
Replacing a Bosch Aquastar 125FX with a Bosch Therm 830ES
The older Bosch Aquastar model 125FX came in either Natural Gas (NG) or Liquid Propane (LP) and was 117,000 BTU and was a direct vent unit that was good for one major application at a time. The 125FX had electronic ignition and was fan-assisted and took its combustion air from the room it was installed in. The heater had a built-in fan so the heater could be vented right out the sidewall of the building. The Aquastar 125FX had to be vented with 4" sealed stainless steel venting going a maximum of 15' out the sidewall of the building into the FXHood. The FX Hood was a termination hood specifically designed for the 125FX and had a built-in flapper to keep cold air from penetrating the vent pipe and freezing the heater. The Bosch Aquastar 125FX is discontinued now and has not been made for over 8 years or so. One of the closest replacement models for the 125FX would be the new Bosch Therm 830ES.
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| Bosch Therm 830ES |
The new Bosch 830ES comes in either Natural Gas (NG) or Liquid Propane (LP) and is 175,000 BTU which is slightly more BTUs than the older 125FX. The Bosch 830ES needs a minimum of a 3/4" gas line and has 3/4" water connections also. The 830ES is a sealed unit and takes its intake air from the outside using 3" PVC. The unit is vented to the outside using 3" Stainless steel venting and this could be attached to the FX Hood that is already in place using a 3" to 4" increaser (Z-Flex Part #2SVSI0304). The 830ES is digitally controlled and can go from 100 - 140 degrees F. See below for more specifications and capacity.
| Therm 830 ES | Specifications |
|---|---|
| Condensing/Non-Condensing | Non-Condensing |
| Application | Residential or Commercial |
| Max Input (BTU) | 175,000 |
| Min Input (BTU) | 19,900 |
| Capacity at 35°F Rise (gpm) | 8.3 |
| Capacity at 55°F Rise (gpm) | 5.3 |
| Intelligent Cascading | Yes |
| Min Flow Rate | 0.5 gpm |
| Temp Range (°F) | 100 - 140 |
| Temp Stability (°F) | +/- 2 |
| Default Temp (°F) | 122 |
| Energy Factor | .82 |
| Thermal Efficiency | 82% |
| Installation Options | Indoor or Outdoor (for outdoor, kit required) |
| Dimensions (w x h x d) | 17 7/8" x 31½" x 11¼" |
| Weight (lbs.) | 67 |
| Inlet Connection | ¾" NPT |
| Outlet Connection | ¾" NPT |
| Gas Connection | ¾" NPT |
| Max Water Pressure | 150 psi |
| Min Water Pressure | 30 psi |
| Min NG Presure | 3.5" WC |
| Condensing Heat Exchanger | n/a |
| Venting Options | Stainless Steel |
| Vent Maximun Run | 61.25' |
| Energy Star Rated | Yes |
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