Haven't posted here in a while... How's everybody doing?
Here's my situation. The breezeway between the house and the garage was converted into a den back in the 60's. The 120 sq foot room has wood floors over a slab. There is almost no way to get ductwork to this room. Primary heat is therefore provided by two electric baseboard heaters together using about 2750 watts @ 240v to produce about 9000 btus of heat. These run constantly during the WI winter producing shockingly high electric bills during Dec - Feb while struggling to keep this room at 69 degrees F. Here in Milwaukee during those months, temps are generally in the 0 - 20 degree F range with averages in the teens. During the summer, the AC runs pretty well to cool the entire house. It starts up around noon and runs more or less constantly during hot days to keep the house at 74 degrees. When temps exceed 90 degrees (very rarely), the AC can't quite keep up and temps slowly increase to a high of about 78ish. I'm thinking the AC unit is sized almost perfectly for the house/den combination but could benefit from the YMGI during those few hot summer days where the temps soar above 90 degrees.
Based on all of this, I'm thinking of having my HVAC guy install a mini-split for the Den. Specifically, I'm considering the YMGI WMMS-09K-V2A. This seer 22 mini-split produces a maximum 11,100 BTUs while using 1,100 watts at 120v. It is claimed that the working heat side ambient temps for this inverter powered gizmo are 5 degrees F to 86 degrees F. I've attached YMGI's spec sheet for the device.
So, what do you guys think about this crazy scheme?