Looking for opinions on Mini Split Heat Pumps. I live in Southeastern
Virginia. I had a 18 seer heat pump installed in my home in 2007. The
home is very comfortable, except for the Master Bedroom addition. The
addition is always really hot in the summer and very cold in the
winter. We keep the house thermostat set to 73 in the winter, but the
Master Bedroom stays at about 66 degrees. In the summer, it is usually
about ten to 15 degrees hotter than the rest of the house. The
addition size is 300sf.
I see an 18 seer mini split heat pump for about 1100. It is 9000 btu.
Is that big enough for 300sf? It says it will only heat to about 15
degrees ambient because it doesn't have heat strips. How accurate is
that 15 degree statement. We dont get many days at 15 degrees here,
but we get quite a few at 25 to 35. I would hat to buy this thing and
it is not able to maintain the bed room at 73 in the winter.
As a side note, I am in a HVAC program at my local community college.
I want to use this install as a learning project. I will try to do
most of the install myself, and I will get my instructor to come out
for the lineset evac and start up.
Any advice would be welcome.