Mini split sizing
We are looking to add a mini split to replace electric baseboard heating . Located in Langley BC.
January February mean daytime temperature is 36 F, night time 33F, night time temperatures go below freezing maybe 15-20 times all winter and only to the high 20’s F.
We live in a 2nd floor in law suite around 750 – 800 square feet , open concept kitchen family room, an additional bedroom is not heated as it stays between 58-65F.
Presently heated with2-500watt and 1- 1250 watt electric baseboard heaters (3413×2.25=7679btu).
Night time setback to 62F, daytime 69F, however it generally takes2-3 hours to bring it back up in the morning. Only a few times a winter does it get somewhat cold into the low to mid 20’s, then a plug in electric heater is used to bring the temperature back up quicker in the morning.
So I am looking at Gree 9000 btu and a Gree 12000 btu .Specs for 9000btu: cooling cap;1535-12966,heating cap:2388-13648, seer:38 hspf;15.
12000 btu specs:cooling cap:3,100- 13,000, heating cap: 3,071- 18,766, seer: 30.5, hspf :14
When I look at hvac internet sites they recommend 9000btu for less than 400 sq feet , 12,000 btu 5-600 sq feet.
Am I missing something here? I think either one would do as they both modulate quite low in heating (2388 &3071) .
Any thoughts would be appreciated!
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