Mev
Member
I'm in Northeast Massachusetts. We have gotten some estimates on a mini-split system with 2 heads. This is not for the whole house, it is just what we can afford to do at this time, and to tackle the 2 worst areas in the house during the summer. Heating during the winter would be a positive, but we have a 5 year old high efficiency gas condensing boiler and baseboards all thru the house.
The first head would go in the 16x11 sunroom with 3 exterior walls (S,W,and East) and a 7'x7' opening into a large kitchen. The head would be positioned on the south wall directly facing the opening into the kitchen. The hope is that it could cool and heat the sunroom and kitchen. There is no baseboard in the kitchen.
The second head would be on the third floor which is 36'x28' with windows on the east side and 2 large skylights on the south side. I was hoping that this head could cool this floor and also take care of the heat that naturally rises from the lower floors through doorways and stairways that are always opened.
I have gotten quotes that range from 24K outdoor unit with 2 12K heads for around $11k, to a 24K outdoor unit and 15K for the sunroom and 18K for the third floor for $18K.
Everyone else is in-between. No one did a Manual J, just simple questions about insulation and about half took dimensions.
I've tried simple load calcs myself and tried simple and a little more complicated CoolCalc runs, but I don't trust what I've done (ex. don't see where to specify skylights for specific rooms or sliding doors for specific rooms, knee walls, slanted walls,....):
Sunroom and Kitchen: 13K cooling, 15K heating
3rd floor: 6K cooling, 7K heating
Can anyone recommend someone in my area to do a real manual J?
Thanks,
Mark
The first head would go in the 16x11 sunroom with 3 exterior walls (S,W,and East) and a 7'x7' opening into a large kitchen. The head would be positioned on the south wall directly facing the opening into the kitchen. The hope is that it could cool and heat the sunroom and kitchen. There is no baseboard in the kitchen.
The second head would be on the third floor which is 36'x28' with windows on the east side and 2 large skylights on the south side. I was hoping that this head could cool this floor and also take care of the heat that naturally rises from the lower floors through doorways and stairways that are always opened.
I have gotten quotes that range from 24K outdoor unit with 2 12K heads for around $11k, to a 24K outdoor unit and 15K for the sunroom and 18K for the third floor for $18K.
Everyone else is in-between. No one did a Manual J, just simple questions about insulation and about half took dimensions.
I've tried simple load calcs myself and tried simple and a little more complicated CoolCalc runs, but I don't trust what I've done (ex. don't see where to specify skylights for specific rooms or sliding doors for specific rooms, knee walls, slanted walls,....):
Sunroom and Kitchen: 13K cooling, 15K heating
3rd floor: 6K cooling, 7K heating
Can anyone recommend someone in my area to do a real manual J?
Thanks,
Mark