Please recommend an HVAC system for retrofitting a 2-unit Victorian in San Francisco
Both units in my building currently have natural gas wall panel heaters.
I have available attic space and a mostly unfinished basement area. I am considering switching to some form of solar for one or both units. I’m also looking into heat pumps and high velocity ducting. I’m concerned about air quality, noise and the possible compromise of the historic character of the house. My current electric bill is under 50. per month. My gas bill increases by about 50 per month in each unit in the colder months. It seems like solar is still too expensive in that I’m also looking at the expense of additional insulation and heating appliances. I would like to use whatever insulation would provide the best sound transmission reduction between the two units. What would you recommend?
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