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What is the BTU of this H/P? 3000BTUWhat size heat strips in KW? Don't know but they do provide heat at low ambient temps (<15 deg. F)Are they (heat strips) working? Yes.What square footage is the house? 1550What brand and age of equipment? Brand unknown but it was new with the house 5 years ago.The answer to your quest is above is 2 thru 5. Hmm......not very encouraging.
3000 btu would not even heat one room. You need 5000 btu per bedroom (basic rule of thumb)
Most older heat pumps would cease operating when ambient was down to 30. New units have a wider operating range.First, do you have your EPA card to touch R22? No EPA thing but, I do have a valid passport They take a VERY dim view if you do not. Do you have a recovery machine? No, but I do have one of those stair stepper machines that I exercise on every morning, Don't take offense if you are up to speed.... I just throw this out for everyones info.Now, this is not shade tree mechanics, where you just shove a little R134 into your car and come back next summer. I usually just let system pressure suck the refrigerant into the low pressure port...I don't have to shove it. "fiddling" with a heat pump will get you into uncharted trouble. You need to have proper equipment, and based on the data plate and install manual for your unit, determine what the proper subcooling should be based on house temp and outdoor ambient. Adjust charge IF NECESSARY.
ground source is the best for heat pumps but real expensive. try 1500w infared heaters for xtra aux. just a thought.
I know a guy who added another wall 1 foot from his existing wall on the south facing side of the house. He installed a thermostatically controlled solar driven fan to pump the hot air inside the false wall to inside the house. Cut his power bill down to nothing in winter.
He lives on Fowl river near Belengrath gardens. We have mild winters here. I think the house was featured in a newspaper article but I cannot find it. You ever hear of a beer can heater?