Every good install starts with the right numbers. Whether you’re sizing a boiler, planning radiant heat, or adding a mini split, accuracy matters.
SupplyHouse has refreshed the content and FAQs on five of our most-used calculators to make them clearer and more helpful. The tools themselves haven’t changed, but the pages now explain what each input means and include practical answers to common sizing questions.
Here’s how each update helps you get the job done right.
BTU Calculator: A Solid Starting Point for Heating Projects
The BTU Calculator estimates how much heat a building needs to stay comfortable. It asks for system type (radiant, baseboard, or radiators), total square footage, home age, climate, and whether the space has been renovated. From there, it calculates a heating load in BTUs per hour.
The refreshed page explains each field so users know how their inputs affect the result. The new FAQs also help clarify how BTUs relate to boiler sizing, giving both professionals and DIYers a reliable starting point for any heating job.
Once you have your number, visit Boilers to find models that match your calculated output.
Mini Split Calculator: Find the Right Ductless Size
The Mini Split Calculator helps determine how much heating or cooling a room or group of rooms requires for a ductless system. It considers factors like room type, sun exposure, and average occupancy to give a BTU recommendation that matches real conditions.
The refreshed page provides clearer descriptions for every step and new FAQs that explain what affects the final number. The calculator helps avoid common sizing mistakes, so you can choose a system that runs efficiently and keeps the space comfortable year-round.
Explore Mini Split Systems to find options that match your BTU range.
Radiant Heat Calculator: Plan a Comfortable Floor
The Radiant Heat Calculator makes it easy to plan a hydronic radiant floor system. It asks how the PEX tubing will be installed—slab, joist bays with plates, Quik Trak, or staple-up—and the total floor area. The calculator then estimates material needs and output capacity.
The refreshed content simplifies the layout process and includes FAQs that help interpret results and guide next steps. It’s a practical way to plan a radiant system and confirm that your design matches the space you’re heating.
When you’re ready to shop, visit Radiant Floor Heating Supplies for PEX tubing, manifolds, and accessories.
Quik Trak Calculator: Quick Estimates for Panel Quantities
The Quik Trak Calculator gives a fast estimate of how many standard and return panels are needed for a radiant floor project. Enter your total square footage, and the tool calculates how many panels are required for complete coverage.
The updated content makes the calculator easier to use, and the new FAQs explain how to read your results. It’s a simple, dependable way to plan a Quik Trak installation without over- or under-ordering materials.
Find panels and accessories in the Uponor Quik Trak System.
Expansion Tank Size Calculator: Keep System Pressure in Check
The Expansion Tank Size Calculator helps you choose the right expansion tank for heating or plumbing systems. It begins by asking whether your project involves a heating loop or domestic hot water, then recommends a tank size based on system volume and pressure.
The refreshed page explains what the calculator does, when to use each tank type, and how to interpret the results. The FAQs also help you understand the difference between hydronic and potable water expansion tanks.
Browse Expansion Tanks to find models from trusted brands like Amtrol, Watts, and Bell & Gossett.
Why the Updates Matter
Numbers only help when you understand them. These updates were about making each calculator clearer and more useful for real projects. Every page now explains what the inputs mean, shows how they affect the results, and answers the questions people ask most on the job.
No guessing, no confusion, no wasted time. Just straightforward tools that help you size equipment, plan materials, and get reliable answers. The calculators still use the same trusted math, but now the information around it makes more sense.
You can find them all in the SupplyHouse Resource Center. Bookmark the ones you use most and keep them close for your next project. Good information is part of doing the job right.
