I need to know about makes and models and how they have worked for you. I don't know much about flow rates so please give a description about how heavy the use. I have a drilled well so my water is quite cold. Tia lucy
Need Info On Tankless Water Heaters
Nov 02, 2005
2 Replies
The need for a 5" vent vs the traditional 3" vent prevents many people from getting one. Other than that, there are already plenty of previous posts (mostly positive) for you to search through.
Only the passively vented models use a 5" vent. Of course, with an actively vented model you need to supply electricity, and you have no hot water in a power failure.
The other common "gotcha" is the need to run a larger gas pipe because of the very high BTU/hr demand of these units. I'm planning to put one in rated at 200K BTU/hr, and I need to run a 1" gas pipe to it because it is farther than 30' from my gas meter.
Cheers, Wayne
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