Do you have natural gas or propane or just electric? How big is the garage, what climate zone are you in and what temperature do you want?

We have natural gas but it would be work to get it into the garage. No propound. Electric is most viable.

We live in Vancouver BC Canada I think zone 8

I want it to be warm enough that if we leave wet things they dry out not get mould. It turns out the two items with mould were my husbands bike gear that were wet.

Garage is 500 square feet. No window. Attached to house.

Agreed we don’t need it all to be heated at all. We can’t build a closet though. It’s like we need targeted heat. But I don’t know if that is possible. I asked locally and everyone I know here also has an insulated but cold garage.

Perhaps I used the wrong term, these are very common on the other side of the pond.

https://professional.electrolux.com/gb/commercial-laundry-equipment/drying-cabinets-2/

Very cool!

Because the house we bought had a pellet stove in the living room and we really like it, my husband put one in the new 24x32' garage we had built. He starts it in the morning on days he plans on working out there and its off when he's not.

Types for Outdoor Heaters-

https://www.heating-air-conditioning.org/

Outdoor heaters typically use one of four main types of fuel sources — Natural Gas, Propane, Electric & Wood — each with their own set of pros and cons. Let’s take a closer look at each of the fuel types, and help narrow down which one is best for you.

1. Propane

Propane heaters are pretty easy to add to your patio or yard. They don’t usually require professional installation, so it’s just a matter of putting them together, attaching the gas tank, and turning them on.

Unfortunately, they cost more than natural gas outdoor heaters in the long run and you should plan on replacing the gas tank every so often if you go with this option, but the startup convenience appeals to many users. And when the propane tank does run out, it’s incredibly easy to replace the tank with a new one.

Benefits:

Heat up fast.

No installation required.

Portable; Can be moved to where you need the heat the most.

To Keep in Mind:

Propane costs more than natural gas.

Gas tanks will need to be replaced periodically.

Shouldn’t be used in a covered or enclosed space.

2. Natural Gas

Natural gas outdoor heaters will usually require professional installation, since you’ll need them to be hooked up to your gas line. Because of this, they can cost quite a bit more upfront than other types of outdoor heaters — both for the heater itself and the installation costs. However, they’re the cheapest to use once you have them installed and they’re incredibly easy to maintain.

Benefits:

Cheap to use.

Easy to maintain.

To Keep in Mind:

Expensive to buy and install.

Can’t use in a covered or enclosed space.

May be difficult to move due to natural gas line.

Outdoor heaters typically use one of four main types of fuel sources — Natural Gas, Propane, Electric & Wood — each with their own set of pros and cons. Let’s take a closer look at each of the fuel types, and help narrow down which one is best for you.

1. Propane

Propane heaters are pretty easy to add to your patio or yard. They don’t usually require professional installation, so it’s just a matter of putting them together, attaching the gas tank, and turning them on.

Unfortunately, they cost more than natural gas outdoor heaters in the long run and you should plan on replacing the gas tank every so often if you go with this option, but the startup convenience appeals to many users. And when the propane tank does run out, it’s incredibly easy to replace the tank with a new one.

Benefits:

Heat up fast.

No installation required.

Portable; Can be moved to where you need the heat the most.

To Keep in Mind:

Propane costs more than natural gas.

Gas tanks will need to be replaced periodically.

Shouldn’t be used in a covered or enclosed space.

Since this was randomly revived. We installed two infratech 4000w heaters and could not be happier. They are amazing

We've got a couple of Infratech heaters on our porch (phantom screens so sometimes open, sometimes screen) and plan to add two more before next fall. They give us many more days/nights of use in spring and fall and occasionally cooler summer nights than we'd have without them.