I have a central a/c unit. The vents are small circles located in the ceilings. The master bedroom and den have no vents... I don't know why, or if maybe this is because there are rooms located directly above these two rooms. Can vents be installed? Can separate controls be installed so the air...

I have a Goodman GMPN080-4 REV B furnace, using propane for fuel. I would like to know if possible and how involved to add central air.

Hi, I received a brochure from my power company telling me I should consider "ductless" ac versus the traditional ac cooling unit. What are the differences between the two? The only thing the brochure said was that ductless was more friendly to the environment. Thanks

Hi. I am trying to figure out how to wire the controls for a new central air conditioning system being added to my existing Hallmark furnace. I currently have an oil fired furnace with 2 wire running up to a programmable thermostat, which is capable of cooling and heating. I plan to run a 4 wire...