Ductless Heat Pump - Which one?
I am purchasing a ductless mini-split heat pump. I have had several estimates and in all cases the companies recommend a 12,000 or 15,000 BTU unit. Apparently the area I want to heat/cool falls just in the middle for their calculations. I have a 1,500 sq. ft. bungalow with a large open concept living room, dining room, kitchen and front entry which is where the head unit will be. Off the living room are 3 bedrooms (no hallways) 2 on one side and one on the other. I'm told that the 12,000 BTU unit is more than capable of heating the open area, which is my main concern, but if I want to also provide at least moderate heating to the bedrooms I would be best to go with the 15,000 BTU unit. There is less than $200 in cost between the two units. I have decided to go with a specific brand and here are the specs for both models.
The 12,000 BTU unit has a SEER of 25, an EER of 13.80 and an HSPF (Region 5) of 10.435.
The 15,000 BTU unit has a SEER of 21.5, an EER of 12.5 and an HSPF of 9.565. Both are Energy Star rated.
I know higher numbers are better, but how much better? I also know that bigger is not necessarily better but does it make sense given the information I have provided?
Thanks in advance!
Posted Dec 6, 2012 9:15 AM ET
Edited Dec 6, 2012 10:47 AM ET
Other Questions in Energy efficiency and durability
I have a half vault ceiling with 3 vertical skylights at the peaks. It was condensating alot so we had the blown insulation stuffed between in between the ceiling joists from soffit. There is no ridge vent as its cut off at the windows. Even after replaci
I live in an 1890 Victorian in Southern Pennsylvania, heated by oil. While I love radiators, I hate using fossil fuels! Is there a way to use green technology to use less oil? My methods to date have been uncomfortable - installing a wood stove,