Size my system
Start with how many rooms. One room is a complete kit — outdoor, wall head, and line set in the box. Two or more rooms is a multi-zone: one outdoor unit, a head in each room. Field estimate, not a Manual J. Odd layouts, huge glass, or a shop with overhead doors — call and we’ll size it.
Not sure DIY vs Hyper Heat vs a contractor line? Which MRCOOL do I need?
How many rooms?
One complete kit. Hyper Heat is an option if this space has to heat a Flathead winter.
How big is this room?
Main job
Power at the outdoor unit
Who’s hanging it?
Outdoor unit
Single-zone kit
Single space, about 550 sq ft, and you need it to heat. Hyper Heat is the Montana pick.
DIYHH-12-HP-C-230D25-O + DIY-12-HP-WMAH-230D25-O
$2,532
$89
MCPAD
$64
MCDP30
$42