Quick Answer: To calculate the total BTU load for a propane regulator, I add the BTU/hr input rating of every propane appliance that the regulator may have to supply at the same time. For example, if a furnace is rated at 100,000 BTU/hr, a tankless water heater at 199,000 BTU/hr, a range at 65,000 BTU/hr,

Quick Answer: Fisher, RegO, and Marshall Excelsior (MEC) all make serious propane regulators for residential, commercial, and specialty LP-gas systems. “RV-style regulator” is different because it describes a compact regulator category—often an integral two-stage or automatic-changeover design—rather than one brand. If I am sizing a permanent house, generator, furnace, or high-BTU system, I compare actual

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