[pecmsg]

All units are capable of handling Dual Fuel. It's the controls that determine what and when.

One thing with an Oil Furnace, the evaporator MUST be raised several inches above the outlet of the furnace.

Do you have central air installed on this already?

The names on the trucks are more important than the names on the boxs.

I don't see sizes. What's the make and model of the oil furnace?

 

[pecmsg]

Thanks pecmsg.
Actually, I was trying to keep it simple, but actually I have two Thermo Pride furnaces, one about 6 1/2 years old, the other 17 years old, both going strong.
I have two A/C units, one 3 ton (ancient) and one 3 1/2 ton Carrier.
The Bosch quotes spec a 3 ton and a 4 ton, and the Rheem quote specs a 3 ton :and a 3 1/2 ton.
But everyone is spec'ing Honeywell controls, including new control panels (HZ432K TrueZONE HZ322).

Thermo Prides are the best! What's the BTU Capacity of each? Its listed inside the burner compartment.

6 1/2 - 7-Tons is lot of cooling! There guessing at sizes and that not good.

2 story home?
Sq Ft?
Age?
Any improvements, windows, doors, insulation?

 

[pecmsg]

85,000 BTU each
2 story home with a loft
~4,200 sq. ft.
Built in 1978 with a small addition in 1986
All the windows are original Pella I've replaced two of three sliders.
We had an energy audit done in 2021 and sealed up a lot of cracks, but the insulation within the walls is original.
The attic is well insulated with fiberglass.

Based on this I wouldn't go above 3-Tons each floor.

The advantage with the BOSCH 1-3 Ton model is its flexibility. It can be set for anything between 1 and 3 tons. Disadvantage is its electronic complexity. Make sure the installing contractor has been well trained on its install and service.

 

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Simple basic few if any bells and whistles. It will do the job. Sizing is going to be harder.

 

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Thanks for the advice pecmsg.
And what are your thoughts with regard to the low-ball Rheem quote?

Post #11

Take Dan up on properly sizing the equipment.