How to Put a Space Heater in a Dog House: A Comprehensive Guide

When the temperatures drop, ensuring your furry friend’s comfort in their outdoor dog house becomes a top priority. Installing a space heater can be an effective way to keep your canine companion warm and cozy, but it requires careful consideration and attention to safety. This comprehensive guide will walk you through the process of putting a space heater in a dog house, providing advanced hands-on details and technical specifications to help you create the perfect heated haven for your beloved pet.

Determining the Appropriate Size of the Dog House

The size of the dog house is a crucial factor in selecting the right space heater. As a general rule, a small dog house (up to 25 square feet) may only require a 25-50 watt bulb, while a larger dog house (up to 50 square feet) may need a 150-250 watt heater. To determine the appropriate size, measure the interior dimensions of the dog house, including the length, width, and height. This information will help you choose a heater that can effectively warm the space without overheating or consuming excessive energy.

Selecting the Right Type of Heater

how to put space heater in dog house

When it comes to heating a dog house, there are several types of heaters to consider, each with its own advantages and disadvantages:

  1. Light Bulb Heaters: These are relatively simple and inexpensive options, often made by repurposing a standard light bulb. They are easy to install but may not be as energy-efficient as other options.

  2. Ceramic Heaters: Ceramic heaters are more expensive but can provide more consistent and efficient heating. They are designed to heat the air directly, rather than relying on radiant heat like light bulb heaters.

  3. Heated Mats: Heated mats are a good choice for dogs who prefer to lie down, as they provide a warm surface for the dog to rest on. However, they may not be suitable for larger dogs or dogs with a tendency to chew.

When selecting a heater, consider factors such as the size of the dog house, the dog’s size and behavior, and the overall energy efficiency of the unit.

Securely Installing the Heater

Proper installation is crucial to ensure the safety and effectiveness of the space heater in the dog house. One method is to mount the heater on a junction box on the wall of the dog house, keeping it out of reach of the dog. Alternatively, you can use a heated mat that is specifically designed for dog houses, which can be placed on the floor or attached to the wall.

Regardless of the installation method, make sure the heater is securely mounted and positioned in a way that prevents the dog from accessing the heating element or any exposed wires. This will help prevent potential injuries or fire hazards.

Prioritizing Safety Measures

Safety should be the top priority when installing a space heater in a dog house. Ensure that the heater you choose is designed specifically for use in a dog house and has been tested for safety. Avoid using heaters with exposed wires or elements, as these can pose a serious risk to your pet.

Additionally, keep the heater away from any flammable materials, such as bedding or toys, and make sure the dog house is well-ventilated to prevent the buildup of carbon monoxide or other harmful gases.

DIY Dog House Heater Project

If you’re handy and enjoy a bit of DIY, you can create your own dog house heater using a simple and inexpensive setup. One popular method involves using a 3 lb coffee can, a light bulb socket, and a thermostat to create a custom heating solution.

To build this DIY dog house heater, you’ll need the following materials:
– 3 lb coffee can
– Light bulb socket
– Thermostat
– Electrical tape
– Wire cutters/strippers
– Drill

Follow these steps to assemble your DIY dog house heater:
1. Drill a hole in the bottom of the coffee can to accommodate the light bulb socket.
2. Insert the light bulb socket into the hole and secure it in place with electrical tape.
3. Connect the thermostat to the light bulb socket using the appropriate wiring.
4. Place the assembled heater in the dog house, positioning it securely and out of reach of the dog.
5. Test the heater to ensure it is functioning properly and adjust the thermostat as needed.

This DIY project is a relatively simple and cost-effective way to provide supplemental heating for your dog’s outdoor living space.


Keeping your dog comfortable and safe in their outdoor living space is a top priority, especially during the colder months. By following the advanced hands-on details and technical specifications outlined in this guide, you can successfully install a space heater in your dog house, ensuring your furry friend stays warm and cozy all winter long.

Remember to carefully consider the size of the dog house, choose the appropriate type of heater, securely install the unit, and prioritize safety measures throughout the process. With a little bit of planning and attention to detail, you can create a heated haven that your dog will truly appreciate.

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