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EDIT2 -- It's apparently confusing. Reworded. I'd like to setup a HEAT PUMP LOCKOUT. This is for a dual fuel system -- combo Heat Pump and Gas Furnace/2-stage. Could be creative thermostat wiring, or simple Johnson Controls A421 / other temp sensor and relay. For two purposes: • Generator...

EDIT: I just noticed there's a GM9C800804BN -- which is a 1600 CFM version of the same 80 Kbtu, 80% afue, 17.5" wide cabinet!! So I guess my problem is solved! (I changed 1200->1600 below) ---original post--- Looking for advice on selection of a width for Furnace+Coil pair -- 17.5" or 24.5" --...

I'm looking at replacing my 20-year old heating & cooling system. It's 2 zones -- meaning it's two separate, complete, independent systems--one is 100KBTU, the other 80KBTU, home is 2900 sqft. EDIT: Cut to the chase -- I abandoned the idea of a MULTI-SPLIT-DUCTED setup. I had thought all the...

Nearing desperation with a furnace that's tripping flame rollout sensor. ICS/ComfortMaker RPJ-II LP gas furnace. Well, it's working now, but that's only after I tore down the furnace to inspect the heat-exchanger for cracks, removed and cleaned the blower cage fan, and disassembled and...

Hi everyone, Long time, first time :) This is about upgrading an <80% LP gas furnace and AC to a 92+ and heat pump (HP). One of my current LP furnaces needs replacing soon, so work is inevitable. Designing an upgrade. Two systems, dual fuel/hybrid-- Propane furnace coupled to a heat pump...