Quote:
Originally Posted by Tim Hancock
My bill for the stuff from Bosch was under 3k. I probably spent nearly 1k more on my Menards/Lowes/HF stuff. I ended up buying two plastic base plates to set the outdoor units on instead of pouring concrete pads. Had to switch around and buy some new circuit breakers for my main panel in my basement. Had to buy a big spool of 10ga wire, some pvc conduit, some exterior lineset tape, a bunch of white plastic downspout/fittings and a couple AC disconnect fuse boxes.
I originally had a quote of 13.5k to have a local HVAC company put in a single large outdoor unit feeding 4 indoor units. That was a shocker so I started looking into doing it myself. I placed a large unit on order at Lowes but it was backordered. While I was waiting, my old co-worker told me he could hook me up with the Bosch employee deal. After researching it a bit, I cancelled the Lowes order and decided the two smaller separate Bosch outdoor units made more sense due to then having shorter linesets and easier runs to the indoor units. I was advised that long term, having short downhill runs on exterior walls was the best way to avoid having to have condensate pumps at the indoor units. These can sometimes fail over time and cause a leak and water damage to ceilings or walls.
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Tim, what size rooms are the 9K wall units handling, and what sq ft is the 12K unit handling? What outside temps do you see?
I am starting to figure our exactly what size systems I need. In my house, the two bedrooms that will be on systems #1 are about 260 sf each, and the two bedrooms that will be on system #2 are about 200 sf each. An online calculator says sq ft x 25 = BTU, so system #1 needs 6.5K BTU + 6.5K BTU = 13K BTU and system $2 needs 5K BTU+ 5K BTU = 10K BTU. So two 18K systems like the one you linked would be more than sufficient (and the next size down, 9K, not enough). Like you, I prefer two dual head units for line run reasons. Also, two of the four bedrooms are frequently unoccupied.
Does anyone have experience mounting wall units
low rather than high? My bedrooms have "picture rails" that make the normal high position undesirable.