Already have ducts? Keep them.
MRCOOL® Universal DIY central systems drop into your existing ductwork for whole-home heating and cooling — high-efficiency inverter performance, self-installable, no contractor markup.
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The offer
Choose your ducted central system.
MRCOOL® Universal DIY central heat pumps that connect to your existing ductwork.
Ducted central systems are sized to your home's load — check the BTU guide or reach out before ordering.
Works with your existing ductwork
Works with your existing ductwork
Works with your existing ductwork
Works with your existing ductwork
Works with your existing ductwork
Works with your existing ductwork
How it works
A DIY central heat pump for the ducts you already have.
MRCOOL® Universal DIY central systems are self-contained inverter heat pumps built to connect to standard ductwork. Variable-speed efficiency, cold-climate heating, and an install you can do yourself with the pre-charged line set.
Use your ducts
Connects to existing supply and return ductwork.
Inverter efficiency
Variable-speed operation instead of noisy single-stage.
Cold-climate heat
Real heating performance through a Canadian winter.
DIY-ready
Pre-charged line set — no vacuum pump, no licence.
Why bother
Your ductwork is fine. Your old central system isn't.
An aging furnace or AC on existing ducts is loud, thirsty and on borrowed time. But replacing central equipment usually means a contractor, a big quote, and days without heat or cooling.
Why not call a contractor
A central swap is where contractors charge the most.
Full central system replacements run $10,000–$20,000+ installed, and single-stage equipment keeps short-cycling and spiking your energy bills long after the invoice is paid.
The payoff
Modern central comfort — on your existing ducts, on your schedule.
Upgrade your central system yourself.
Choose a ducted system below, or confirm your sizing with the BTU guide first.