sq ft open floor plan of 37’x20′ with a ceiling height of 11’4” and a bathroom 8’x8′ with a ceiling height of 8′ plus a closet 8’x10′ with ceiling at 8′. He quoted : “Don’t fix it if it’s not broken” but my gut instinct tells me that we should replace the 5 ton compressor with a more appropriate one for the downstairs area. The wall ac just died since it is 13 years old and landlord isn’t going to replace it, so, it is up to me, but all i see are window ac units and 5,000btu is too big for the wall opening.

BTU in air conditioners is simple a metric of how much cooling effect that particular AC unit can produce. Please Note: All portable air conditioners must be vented out so the heat is removed from the room that is being cooled. If you check those 3-zone mini-splits, you will see that the best one – with 36,000 BTU – is Senville SENA-36HF/T. Nonetheless, if you just use the basic rule of thumb (20 BTU per sq ft), you would require about 48,000 BTU unit (and that is not even accounting for the above-average 10 ft ceiling height).car garage, 9 foot ceilings, 660 square feet with one window…walls, ceilings and garage doors insulated…. Given these this range of uses–one for the whole upstairs and one for the south bedroom only–do you think I need a unit with more than 10,000 BTUs? If the combined 16,000 BTU was enough now, the combined 17,000 BTU (with 12k unit) should be enough. Powerful Cooling: Provides effective cooling down to 16°C in rooms of all sizes, perfect for your bedroom, living room or office. Hello Tana, with porch air conditioners you have to increase the BTUs above 20 BTU per sq ft due to lack of isolation.

There is an open kitchen in the living area, i don’t do a lot of cooking, not sure whether to add the 4k btu or not? One drawback with the Wave 2 was the twin air pipes: one to suck fresh air in and one to blast hot air out.With that big sliding glass window and a lot of sun, the safe estimate for the most optimum AC unit would be 7. The running costs of around 25 to 35p per hour will seem reasonable value for money the next time temperatures rise. Hello Adi, the ‘don’t fix it if it’s not broken’ is a standard HVAC expression and it holds true most of the time.

It may be more expensive than competitors but, as Kandola says, it’s worth it: “With the likes of Honeywell and De’Longhi, you will 100 per cent get excellent quality. The circuit which you have both of them plugged into is likely too small to handle the load of both at the same time.

I’m thinking 3 units- one in the living room, one in the laundry room doorway in the hall (aimed at the kitchen), and one on the upstairs landing above the living room. It gets incredibly humid in the summer (90%+) but the windows are north facing and direct sun exposure is not excessive. However, the west-facing wall, hot bedroom, and so on do indicate that you would need something a bit more powerful just to be safe. However, to get a perfectly-sized air conditioner with just right enough cooling power and no energy overspending, you should consider some additional factors.