How Energy Efficient Are Dog Doors? (Solved & Explained!)

Dog doors without insulation or magnets let cold air in and are not energy efficient. Other doors are insulated and close tightly and are much more energy efficient in colder climates. We recommend going with models such as the ‘RuffWeather’ or ‘Endura’ if you live in an area where temperatures can tend to the extreme. Standard dog doors are not very efficient on their own, so you need either a weatherproof model or you should winterize your existing one.

In today’s article, we’ll address common questions about energy efficiency and dog doors. Are two flaps better than one? How do you keep your dog door from leaking? Read on to get these answers to these questions and more!

What is the most energy efficient dog door?

One of the most energy efficient doors out there is the Endura from Patio Pacific. It has a 1/3 inch thickness to the flap, which doesn’t sound like much unless you know that the industry standard is much lower – just a mere ¼ inch thickness.

Close behind the Endura, you can check out the ‘RuffWeather’ and the “Power Pet’ from Ideal Pet Products and High Tech Pet, respectively. If you live somewhere where the weather has a tendency to be a bit on the vicious side, then you should definitely consider one of these models.

How can I make my dog door more energy efficient?

For ‘no-tech’ style flap doors there are a few methods for weatherproofing that you can do yourself. Weatherstripping, for instance, is easy to purchase and to apply. Silicone caulk is also an easy sealant for cracks and can make a noticeable difference. Finally, consider a new flap.

Dog flaps are normally only ¼ inch thick, so replacing the current flap with a thicker one of even two flaps can help to improve energy efficiency quite easily at a very low cost.

Do dog doors let heat out?

Yes, dog doors can have a negative impact on your energy bills, unless you spend a little extra from the get-go to purchase a more energy efficient door or if you winterize your existing door. Adding insulation can help, plus you can caulk any cracks with a good silicone gel caulk.

Double flaps can help or you could even upgrade to an electronic model, which will stay firmly locked in place until your dog needs to use it. While these options cost a little more, it’s almost negligible, especially when you consider the overall savings on your electric bill. An upgrade will pay for itself many times over.

How do I stop wind from blowing in my dog’s door?

If you have a standard flap model door, the easiest way to seal it against the wind is going to be by affixing magnets to the base. After you affix the magnets, you should install a metal strip at the base of the door, and the magnets will pull against it and form a rudimentary seal.

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This will reduce the chances of wind coming inside, though the gaps below make this a much less attractive solution than upgrading to a model with an airtight seal or even an electronic locking dog door.

How do I stop rain from coming in my dog’s door?

The best way to keep rain from coming in is twofold. First, you need as much of an airtight seal as possible. Look for flaps that incorporate bellows or make use of magnets to help secure them tightly in place. Next, make sure that the ‘step’ for your dog door is high enough.

The step for the door needs to be 1/3 the size of the smallest dog using the dog door. This will ensure that the base of that door is high enough that any flooding from heavy rains will stay outside, rather than flowing into the house!

Do dog doors make your house cold?

Dog doors can definitely bring a bit of cold into your home, especially if your dog can’t decide whether they want to be in or out and use the door multiple times over the course of an hour. Dog doors such as the ‘RuffWeather’ and the ‘Endura’ are a good solution for this.

These doors have a superior thickness to the flaps and other weatherproofing features that you won’t find in your standard, run-of-the-mill dog doors. Check these options and consider an upgrade – when you factor in yearly energy costs, it just makes good sense to have a more weatherproofed dog door in place.

Do dog doors leak?

After installing a dog door, you never really know that the installation was perfect until the first good storm comes. If you find that your pet door is leaking, then don’t panic – you can purchase silicone caulk quite cheaply and apply this gel to the cracks that are letting in the rain.

Once dried, this caulk will seal those cracks tight, and then your leak problem should be over. If you are still having issues or if you are also getting a draft, consider upgrading to a more weather resistant door. They are worth every penny!

Do doggie doors let hot air in?

A standard dog flap can have an enormous impact on your summer cooling bills if you are not careful. We recommend upgrading to an electronic model as the best option, as this essentially creates a mini door that locks into place and will lose the least amount of energy through use.

If you don’t want an electronic model, consider purchasing a thicker flap or even adopting a 2-flap strategy, as this can help to minimize the heat transfer which occurs whenever your dog is going in or out of the dog door.

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Are two dog door flaps better in cold weather?

Yes! A 2-flap dog door traps a layer of air in between the flaps, which helps to minimize the amount of heat or cold that flows through when your dog is using it. Endura two-flap dog doors provide this kind of efficiency with extra-thick dog flaps, but you can find models from many companies if you don’t like the Endura.

Can you seal a vinyl dog door against cold?

Yes. With weatherstripping and silicone caulk you can seal up any cracks produced by the installation of your dog door and this can make a big difference in it’s energy efficiency. You can also purchase a new vinyl flap that is designed to be more airtight. It’s inexpensive and highly recommended to minimize energy loss.