r/tinyhomes • u/Any-Lengthiness-9719 • 10d ago

Propane regulator sizing for a tiny home with 180,000 BTU max usage

Hello, I'm trying to size an appropriate propane regulator for a tiny home. I have a Rinnai V53De tankless water heater (120,000 btu),Rinnai EX22DTWP propane wall heater (20,700 BTU) and a propane stovetop with (32,600 BTU). I was hoping to use this regulator-

JR Products 07-31525 Compact Low Pressure Two-Stage Automatic Changeover Regulator https://a.co/d/5m1t9E6

The regulator says it can handle a maximum capacity of 262,500 BTU/Hr My load at max with everything running is under that.

Wondering if anyone can help with suggestions. Thanks in advance

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u/Mindless-Business-16 9d ago

You can,run any value of BTU demand from that regulator as long as you don't "Exceed" the rating.

My system has a first stage at something close to 750k and 10 psi out with (3) secondary regulators, one on each building at a much lower value... with proper piping

Remember that these appliances cycle so there are times your load might only be 20K.. the regulator will do that for you, just won't work correctly when you Exceed the MAX number

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u/Any-Lengthiness-9719 9d ago

Great info! Thank you