9 Ideas for How to Heat a 3 Season Room

You’ve spent loads of time and budget on creating a beautiful space that makes the outdoors accessible nearly year-round. Adding some heat can make it the ideal spot to keep your garden going or soak up the sunshine even on a frigid day. Here’s how to do it.


Before You Get Started

There are a few things you should keep top of mind as you consider heating options for the 3 season room.

  • 3-season rooms are not typically insulated; this makes them less efficient at getting warmed up and staying that way

  • Consider the size of the room and pick a heating option that can handle the square footage

  • Keep your budget in mind, not just the initial budget but how much it will cost to operate the heating option you choose

  • There are temporary and permanent heating solutions available to heat your space

Always prioritize safety and follow manufacturer instructions and guidelines for proper usage and maintenance

Small space heater made to look like a wood burning stove.

Space Heaters

Electric space heaters are a popular option. They are portable and can provide targeted heat to the specific areas of the room that need it most. Look for energy-efficient models and make sure to follow safety guidelines, such as keeping flammable objects away from the heater.


Baseboard heater in a corner of a room with white walls and gray carpet. 

Baseboard Heaters

Electric baseboard heaters can be installed along the baseboards of the room, providing even heat distribution. They are relatively easy to install and are easily controlled.

More on Baseboard Heat

Some of the 3 season room heat options aren’t great looking. With baseboard heaters from Baseboarders, it’s different. These covers are streamlined and come in a selection of colors and shapes that will blend right into your design. They provide consistent and reliable heat without being an eyesore or making it too hot or too cold.

Take a closer look at our designs and add them to your 3-season space today.

Shop Baseboarders

Electric Radiant Heaters

These heaters use radiant heat to warm up objects and people directly, similar to the way the sun warms the earth. They can be mounted on walls or even on the ceiling for efficient heating.

Wall-Mounted Electric Heaters

These heaters can be mounted on a wall and provide a more permanent heating solution. They come in various designs and sizes, and some even include a fan for better heat distribution.

Ductless Mini-Split Heat Pump

If you're willing to invest a bit more, a ductless mini-split heat pump can be a great option. It provides both heating and cooling and is more energy-efficient than traditional heating methods. It's also less invasive than installing ductwork for central heating.

Pellet Stove

If you have access to a power source and ventilation, a pellet stove can provide efficient heating. Pellet stoves burn compressed wood pellets, offering a cozy and eco-friendly heat source.

Person installing insulation in an exposed wall.

Insulation Improvements

Consider improving the insulation in your 3 season room to retain heat better. Adding weather stripping, caulking gaps, and insulating windows and doors can help reduce heat loss.

Thermal curtains in front of a window to keep the cold out.

Thermal Curtains or Blinds

Installing thermal curtains or blinds can help prevent heat loss through windows. They provide an additional layer of insulation and can make a noticeable difference in maintaining warmth.

Living room with large rug in a cross hatch pattern.

Rugs and Carpets

Adding rugs or carpets to the floor can help insulate the room by preventing cold air from rising through the floor providing a warmer surface underfoot.

Ceiling Fans

Surprisingly, ceiling fans can also help distribute warm air evenly in the room. Many ceiling fans have a reverse setting that pushes warm air down from the ceiling.

How to heat a 3-season room isn’t a mystery. It’s just a matter of finding the right heat source then preparing your room to make the most of that heat. Enjoy your sunroom, enclosed porch, etc. much more comfortably for much longer. Add some heat and enjoy.

Learn more about secondary heat sources on our blog.


See Secondary Heat Sources