Re: appointment @ RnR Spokane
Reply #62 –
Propane furnaces work well depending on your sensitivity to humidity and temp swings.
Propane furnaces for safety require the fan to come on first after the thermostat sends the start signal so if you had an internal propane leak you will not have an explosion.
At the temp cutoff signal the flame cuts off. The fans high temp safety system keeps the fan on until the unit cools enough.
The aqua hot produces heat at the fan turn on then when the higher temp opens the thermostats contact the fan stops immediately.
Plus and minus 5 degrees or so on the propane system. Plus or minus 2 degrees on the aquahot.