GARAGE HEATERS

Garage Heater Installation in Plymouth & the West Metro

Brass Tacks Plumbing, Heating & Cooling installs gas and electric garage heaters for homes in Plymouth and the West Metro. For gas heaters we handle the gas line, venting and hookup, and we can also connect a heater you already bought. We size the heater for your garage, mount it to code and test it before we leave.

Ceiling-hung gas unit heater in a garage with its metal vent pipe and a gas shut-off valve on the supply line
Choosing a heater

Gas or Electric Garage Heater?

The right heater depends on the size of the garage, how often you use it and what is already there: a gas line nearby, room for a vent, or spare electrical capacity.

Vented gas unit heaters

A ceiling-hung gas unit heater warms a garage quickly and suits larger garages, shops and spaces you use often. It needs a gas line sized for the heater and a vent to the outdoors.

Electric garage heaters

An electric heater needs no gas line or vent, which makes it simpler for smaller garages or occasional use. It does need a dedicated electrical circuit sized for the heater.

Sizing the heater

Square footage, ceiling height, insulation, the garage door and how warm you want the space all affect the size you need. An insulated garage door and sealed walls make a smaller heater go further.

No unvented gas heaters

Minnesota’s mechanical code does not allow unvented fuel-burning heating appliances in a dwelling, so a permanent gas garage heater should be a vented model.

Source: City of Mounds View, Detailed Gas Piping & Appliance Installation (2020 Minnesota Mechanical and Fuel Gas Code)

Installed to code

What a Safe Garage Heater Install Looks Like

Garages hold cars, gasoline and solvents, so gas appliances there have extra rules. These come from the 2020 Minnesota Mechanical and Fuel Gas Code as summarized by the City of Mounds View.

Mounted high enough

In a private garage, appliances must be at least 6 feet above the floor unless they are protected from being hit by a vehicle, and the ignition source must be at least 18 inches above the floor.

Clearance to combustibles

Suspended unit heaters need 18 inches of clearance to combustibles on the sides, 12 inches below and 6 inches above.

Vented to the outdoors

The vent is sized, installed and terminated according to the heater and vent manufacturers’ instructions and the code, and the installation instructions must be on site for the inspection.

Carbon monoxide alarms

An attached garage shares air with the house. Minnesota law requires a working carbon monoxide alarm within 10 feet of every sleeping room, so make sure yours are in place and working.

Source: City of Mounds View, Detailed Gas Piping & Appliance Installation (2020 Minnesota Mechanical and Fuel Gas Code)

From our records

Recent Garage Heater Jobs

Two recent garage heater calls from our records, with names and addresses left out.

APR 2026 · ELK RIVER, 1990 HOME

Swapping out an old garage heater

We disconnected the gas line from an old ceiling-mounted heater about 9 feet up so the homeowner could replace it, then came back and connected the gas line to the new heater.

NOV 2026 · OTSEGO

Gas line for a new garage heater

The homeowner had already hung and vented a new garage heater. We looked at the route for the gas line and gave an estimate to run it and hook the heater up.

How it works

Our Garage Heater Installation Process

Whether you want us to supply the heater or connect one you bought, the steps are the same.

01

Look at the garage

We measure the space, check insulation and the garage door, and find the best mounting spot with the right clearances.

02

Plan gas or power

For gas, we check that your gas piping can carry the extra load and plan the new line and vent route. For electric, we confirm the heater’s circuit requirements.

03

Mount and connect

We hang the heater at the required height, run and connect the gas line with a shut-off valve, and install the vent.

04

Test and walk through

We check for gas leaks, start the heater, confirm it vents and cycles correctly, and show you the thermostat and shut-off.

Financing available

Pay Over Time

Brass Tacks offers financing through GreenSky, so you can add a garage heater now and pay over time with approved credit. Financing is subject to credit approval and terms offered by participating lenders.

Common Questions

Garage Heater FAQs

Gas unit heaters heat faster and usually cost less to run in larger garages and shops you use often, but they need a gas line and a vent. Electric heaters are simpler to install and work well in smaller garages or for occasional use, but they need a dedicated circuit.
It depends on the garage’s square footage, ceiling height, insulation, garage door and how warm you want it. We size the heater on site instead of guessing from square footage alone, because an uninsulated garage can need far more heat than an insulated one.
Yes. Minnesota’s mechanical code does not allow unvented fuel-burning heating appliances in a dwelling, so a permanent gas garage heater should be a vented model with its vent run to the outdoors.
In a private garage, gas appliances must be at least 6 feet above the floor unless protected from vehicle impact, and the ignition source must be at least 18 inches above the floor. Suspended unit heaters also need 18 inches of clearance on the sides, 12 inches below and 6 inches above.
Yes. We can run the gas line to a heater you already bought and connect it, or reconnect the gas line when you swap an old heater for a new one.
Usually a new branch line is run from your existing gas piping to the heater, with a shut-off valve. We check that your piping can carry the extra load from the heater along with your other gas appliances.
Yes, when the heater is vented, mounted at the required height and kept clear of stored items. Keep gasoline and solvents away from the heater, and never run a car in a closed garage.
Yes. An insulated garage door and insulated, sealed walls and ceiling hold heat much better, so a smaller heater can do the job and it runs less.
Gas piping and venting should be done by a licensed professional. A loose fitting can leak gas, and a poorly vented heater can put carbon monoxide into the garage and the house.
Yes. Financing through GreenSky lets you pay over time with approved credit. Visit our financing page for details.
Garage heaters

Ready for a Warm Garage?

Tell us about your garage and whether you want gas or electric heat. We’ll look at the space, explain your options and give you an upfront price before any work begins.