Hey folks. Does anyone have any experience with an in-wall tank with the tank/equipment in the attic, or can you provide some pros or cons for this idea? In my upcoming new home the side of the game room backs to an attic storage area, and the wall seems to be screaming "put an in-wall tank here." This would not be a large tank since it'd be in an attic and thus have no foundation beneath it.... maybe 30 gallons? I'd love to use my current 55 if it's possible, but that's probably too much.

The obvious problem is the temperature... attics get hot hot hot in the summer and ice cold in the winter. The winter's not a big problem... heaters are cheap... but in the summer, would a chiller be enough to counteract the heat? I'd also install as many good exhaust fans as needed to blow the hot air and moisture directly out of the attic.

What do you think? Is this doable? I'm meeting with the builders next Wednesday to talk about how we'll frame the house, so if you know anything I should bring up with them that'd be appreciated.