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UNIT HEATER BUYING GUIDE: How to Pick the Perfect Unit Heater. This guide will help you to pick the right unit heater for your home or workplace. Learn the difference between electric unit heaters and gas unit heaters, gravity vented unit heaters and power vented unit heater, and more.

Unit Heater Buying Guide

How to Pick the Perfect Unit Heater

Product Expert
Unit Heater Buying Guide

Are you afraid to step into your garage on winter nights?

Do you bundle up in 5 layers before going into your workshop?

Is your warehouse more like an ice house come December?

If so, it sounds like you could really use a unit heater to keep the shivers outside and bring productivity in.

What’s a Unit Heater?
Unit heaters, also known as garage heaters, are a powerful, yet compact way to heat a space. Unlike basic portable room heaters, unit heaters provide a permanent, and often more powerful, heating solution for your home or work space.

Entirely self-contained, unit heaters use a fan to blow air over a heat exchanger and supply warm air to a specific area in need of heat. In some large applications, you may find multiple unit heaters being used to increase coverage.

A unit heater in a garage
Unit Heater Applications
Unit heaters are available in a huge variety of sizes, fuels, and mounting options. This makes them perfect for nearly any single-room application that comes your way.

Most often you’ll find unit heaters providing heat in rooms that aren’t connected to the building’s central heating system and/or that have low insulation. Some common examples of unit heater applications are garages, greenhouses, workshops, warehouses, stores, and factories.

Choosing Your Unit Heater's Size
When shopping for a unit heater, be sure to select the right size for your application.

If your heater is too small, you'll never reach your desired comfort level.

If your heater is too big, you’ll likely experience large temperature swings and increase wear and tear on the heater as it cycles on and off too frequently.

To make finding the right unit heater easier, we've broken down unit heater sizes by application. Choose the application that most closely reflects how you plan to use your unit heater to learn about your fuel options.

Garage Unit Heaters:
6,000 BTU/hr - 100,000 BTU/hr
Warehouse Unit Heaters:
100,000 BTU/hr - 250,000 BTU/hr
Industrial Unit Heaters:
250,000 BTU/hr - 400,000 BTU/hr

Oversized and Oddly Shaped Spaces
No matter how hot the air is that your unit heater produces, it will only effectively heat the areas it can reach.

Throw is a term that refers to the distance a unit heater can blow heated air, usually measured in feet. Before selecting a unit heater, make sure to compare its throw to the dimensions of your space.

If the space you're trying to heat is oddly shaped or oversized, you may get more effective coverage using multiple smaller heaters instead of one big heater. If you need help with sizing or designing your unit heater layout, give our experts a call at 866-554-4328 and we'd be happy to help!

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