Here are some good space heaters for your boat that will keep you toasty. Boat heaters are needed to keep your pipes defrosted and your cabin heated. Below are a space heaters for a variety of uses.

When heating your boat, please be aware that heaters that have a glowing red coils are not a good choice for an unattended boat as they can cause a fire if they come to close to flammable objects or tip over. Be sure to secure  your heater to keep it from moving around.

Broan-NuTone (6201) Big Heat HeaterThe name is 100% correct on this one. The heater is small but mighty. We ordered this when the temps dropped to below 5 degrees. Our apartment is horribly insulated and the central heat was barely keeping our living room at 60 degrees. This little monster kicked in and helps to hold the temp at 72.

Caframo True North Deluxe 9206 120VAC High Performance Space Heater"This manufacture makes heaters for West Marine – which I have 3 of. When I was in need of another (new travel trailer) I found getting them direct was cheaper than West Marines’ price. They have as many features on a portable heater as your going to find. I like the fact they lay prone. No chance of kicking them over. I trust them to stay on unattended in my boat and beach cabin as well."

Caframo Pali Engine Compartment Heater

Saved my engine from damage after a low spring frost after I summarized. I mounted base to a cedar 1x6 that placed it heater down in my engine compartment and held in place by engine compartment lid. Senses temp and turns on automatically.

List of Affordable Space Heaters for Your Boat

Reviews on boat heaters