Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the place for you!…"
"We are optimizing for a max return water temp of 107 F, typically we get about 100 F. But, we are forcing the systems to delivery 115 F or hotter air temperatures to be comparable to a condensing furnace. If we had better designed duct…"
"I think there has been some confusion in the comments. We are looking at replacing existing forced air systems with forced air combi systems. So the installation costs are only from the water heater and air handler. In…"
"I'm not trying to say that forced air combi systems should be installed in every home tomorrow, but I think they are a good option for some homes and a very good idea to continue to develop.
These systems work really well for low load…"
"There have been issues with the reliability of these systems in the past. Manufacturers have been working to improve these models and reliability has improved. There are many manufacturers (Rinnai, AO Smith, American, HTP,…"
"Great to see all the interest in this topic. As Lester mentioned we are currently conducting a field research project (funded by Building America) to characterize the potential of these systems. Forced air combination systems…"
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Combustion Appliance Zone Testing (CAZ) Made Easy (March 24, 2016)
-Adapting to the new BPI standard
-RESNET testing requirements
-NFPA testing requirements
-Best practices for best results