Bosch Tankless Approval Codes/National Listings

All Bosch Gas Tankless Water Heaters are Compliant with ASHRAE 90.1 and are CSA design certified.

All Bosch Electric Tankless Water Heaters and Electric Mini-tanks are UL and cUL approved.

Please visit:  www.bosch-climate.us for all other codes and cerifications.

Replacing Legacy Bosch Tankless Heaters

We have just started getting some calls from customers who are looking to replace some of the original Commercial Bosch Tankless Water Heaters that were introduced into the market 20 years ago.

If you are looking to replace any of the following Bosch On-Demand Water Heaters, please give us a call at 888.726.9752 so we can help you match your heater up with its current replacement model:

• Bosch WR400-1K (117,000 BTU, Pilot Light)
• Bosch WR400-3K (B) (117,000 BTU, Electronic Ignition)
• Bosch WR400-5K (117,000 BTU, Pilot Light)
• Bosch WR400-7K (117,000 BTU, Hydro Ignition)
• Bosch WR430-3KV (125,000 BTU, Electronic Ignition)
• Bosch WR125-K (125,000 BTU, Pilot Light)

Steve