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Community and Q&A

Looking for a TINY natural gas boiler (with a small price too)

wz6DMEmbAP | Posted in Mechanicals on

I could wait for Martin Holladay’s upcoming article on small heat sources for low energy homes, but I thought I’d give Q&A a shot.

Some basic requirements:
1. 5-20,000 Btuh
2. Direct vent
3. Closed system OK, open system OK.
4. Propane optional (might save the $11/mo. “natural gas service fee”)

Has anyone seen an RV water heater upgraded to IRC code? They cost less than $400. They typically have an aluminum tank, though, and are only 70% efficient.

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Replies

  1. Riversong | | #1

    You might check out the power-vented Precision Temp ShowerMate Marine Water Heater or the direct-vented Precision Temp RV 500 Tankless Water Heater. Both are modulating propane instantaneous heaters with copper fin-tube exchangers.

  2. GBA Editor
    Martin Holladay | | #2

    Kevin,
    A water heater might be your best bet. But why use a boiler for space heating? There are better options...

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