I have been looking into and researching a new system for my home. I have a question that may seem strange. Is there a system that can cool a house to the mid 60's especially at night. I am disabled and the medications I'm on makes me hot all the time. I have to have it what most people would consider cold in my home to be comfortable. My home is well insulated and has double pain vinyl windows with Low-E glass.
I asked a question here last month about using mini-split in the whole house as one company suggested, but only got one response. I'm just not sure if that would be the answer. This company told me this would be better because there would be no duct work to cool in the attic. My home is about 1800 sqft. ranch style home on a slab. It has a 14 year old 3 ton Lennox heatpump with electric backup now with the duct work in the attic. It will cool the house to the lower 70's on the very hot days we are having here in Arkansas (100-110 degrees) which seems to becoming normal here, but it runs all day and half the night to do it.
I need some advice on what type of system would be the best to cool my house. I've had one company tell me I should go to an A/C unit with a furnace. I do not have natural gas service available and will not in the foreseeable future. I do have propane gas into my house. So what are you the Pro's suggestion? Heatpump again that is more efficient? A/C with a furnace running on the propane or the mini splits through out the house. Any advise anyone may have I would appreciate.