Electric Garage | Workshop Heater Review
Written by Todd Fratzel. 
Dimplex DGWH4031 Garage | Workshop Heater
The folks from Air & Water Inc. sent us a small 4,000 watt garage & workshop electric heater to test. We’ve been searching for an electric garage heater for awhile now because our garage and workshop are unheated. Needless to say we really need it right now with the winter weather that has recently settled in.
Dimplex DGWH4031 Features
- Product Dimensions: 9.5″ x 10.5″ x 14.5″
- Product Weight: 18 pounds
- Watts: 4,000
- BTUs: 13,648
- Mounting Bracket Included
- Automatic Temperature Control
- Input: 240 volts, 16.7 amps
Easy Installation
The Dimplex DGWH4031 comes with a handy mounting bracket that allows you to hang the unit from a wall or ceiling. For our garage we decided to hang it on the wall where we could easily aim it towards our work area. To install the heater all you need to do is secure the supplied bracket to the wall or ceiling with some screws or lag bolts.
Next the heater is attached to the bracket with a bolt and T-screw. The mounting bracket and support bracket allow you to swivel the heater and also tilt it. This is a nice feature that allows you to easily aim the heat where it’s
Electrical Supply
It’s really important to note that this heater runs on a 240 volt 20 amp circuit. The electrician ran a 12/2 wire from the garage sub-panel to a 240 Volt – 20 Amp receptacle that’s installed to a double 20 Amp breaker. Running the circuit for this heater is certainly an easy DIY project and one we could have done but the electrician was at the house doing a few other things so we had him do it.
Overall Impression
Overall we think the Dimplex DGWH4031 electric garage and workshop heater is a good product. The mounting bracket and hanging bracket are really versatile and make installation easy.
There are a few things we think are worth mentioning. First off we don’t recommend you hang the heater too high as it makes it hard to reach the thermostat control on the back of the unit. We recommend you install the heater so you can reach the back of it from the ground without a ladder.
Secondly, in our opinion this unit is best suited for small garages or workshops. The small size of this unit had a difficult time heating up our 28×32 garage on a day that was about 20 degrees outside and 35 degrees in the garage. If you have a normal sized garage then we think you’ll want a unit that’s quite a bit larger.
Overall we think the Dimplex garage heater is a good product. It’s built with quality materials and it’s easy to install. If you’re looking for an electric garage or workshop heater for a small space (under 400 sq. ft.) then this is a good choice.
Where To Buy
If you’d like to buy one of these heaters you can purchase it from Air & Water Inc. at the following link:
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I have a similar heater that I use all the time. I have a 30A unit for an insulated 500 ft space and makes it comfortable to work in a sweatshirt without the fumes from kerosene-fueled units. This unit is definitely undersized for a 28 x 32 shop. If you live in a cold climate, you may need to run this size heater for an hour or two to get your shop reasonably toasty, but you will find the clean, fume-free, heat most enjoyable to work in.
Also having the ability to take this type of heater off the ceiling for a preseason cleaning/blow out with compressed air is a good idea. Seemingly, all heaters of this type tend to collect a bit of surface rust and if you don’t shake/blow off the heater element upon your initial seasonal start up you are treated to a brownish red dust storm… Yuck!