Comfort starts with the right system.
Premium heating, cooling, and home-comfort equipment from trusted manufacturers — with the guidance to help you choose correctly the first time.
Shop HVAC Equipment
Find the right system by category.
Design your system
Get the right equipment, matched to your space
Two tools, one catalog. Start wherever you are — we carry what you work out in one straight into the other.
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1
Size it, or skip it Build the room in 3D for a BTU range — or type the tonnage if you already know it.
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See only what fits Every part after that is filtered to what the manufacturer certified with your pick.
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Keep it for later Save the building and the half-built system to your account, on any device.
Takes about a minute · no account needed
Every space you size and every system you part-build stays on your account instead of one browser — laptop, phone, and back again. Order, and the model and serial numbers stay with it too.
Popular HVAC Equipment
Shop Leading HVAC Brands
Browse equipment from the manufacturers you already trust.
Not sure what you need?
HVAC equipment involves real technical decisions -- sizing, efficiency ratings, system types. Our guides break down the details so you can buy the right equipment the first time -- or let the System Finder size your space for you.
What Size Mini Split Do I Need?
Learn how BTUs, room size, climate, and other factors affect system sizing.
Read GuideHeat Pump vs. Central Air Conditioner
Understand the differences and determine which system may suit your home.
Read GuideWhat Does SEER2 Mean?
A straightforward explanation of HVAC efficiency ratings.
Read GuideWhy shop RN HVAC Supply?
HVAC Buying Guidance
Helpful resources for understanding sizing, efficiency ratings, system types, and equipment options.
Competitive Equipment Pricing
Quality HVAC systems and equipment at competitive online prices.
Secure Online Ordering
Protected and convenient checkout for high-value HVAC equipment purchases.
Support When You Need It
Help with product questions, ordering, and your purchase.
Buy now, pay later
Never financed equipment before? It all happens at checkout, takes a couple of minutes, and doesn't slow your delivery down.
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Step 01
Shop as normal
Add what you need to your cart. Nothing about payment changes how you browse or what you pay for the equipment.
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Step 02
Choose how to pay at checkout
Payment options come up at checkout, including pay-over-time where it's offered. You apply with the provider there, not with us.
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Step 03
Your order ships on our normal schedule
Once payment is settled, your equipment moves like any other order. Choosing to pay over time doesn't put your freight at the back of the queue.
Subject to approval. Rates, terms and eligibility are set by the financing provider at checkout, not by RN HVAC Supply.
Need help choosing your system?
HVAC equipment can be complicated. We're here to help you understand your options.