Deck Defender & Grass Guard Fire Pit Heat Shield

The Deck Defender & Grass Guard Fire Pit Heat Shield claims to prevent heat damage caused by wood burning fire pits to your lawn and patio deck. Well we put it to the test!

Deck Defender & Grass Guard Fire Pit Heat Shield

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Deck Defender and Grass Guard Testing

We setup our test with three common wood burning fire pits that we test for our best outdoor wood burning fire pit article. All three fit nicely on the 26” platform. If your fire pit is larger you can simply have the legs touch the ground and slide this underneath.

The fire pits were left on to burn three nights in row each night a different model as wood burning fire pits range in terms of the heat they provide due to the bowl size and wall thickness.

Each night we checked the temperature and it averaged around 1,100 degrees. The fire burned for about 4 hours each night and the grass was dry from a lack of recent rain. We setup the test right next to where we were testing the other fire pits to compare the two.

Our first test was to simply hold our hand under the fire pit with and without the fire pit heat shield. There was a clear difference right away. You could hardly notice the heat on your hand while the fire pit without the heat shield was burning hot. I could only hold my hand under for a minute or so.

The next test was to measure the damage left after the three nights. We probably could have tested longer but due to the lack of moisture in the grass we could already see some browning from the fire pits not using the fire pit heat shield.

Rather than mess up our lawn any further we decided 3 days was enough. The heat shield prevented any noticeable wear spots on grass. As grass is way more fragile than a cement deck we pretty much can extrapolate that there would be very little if any damage to our porch.

How does the Fire Pit Heat Shield Work?

The Deck Defender uses the same technology that is used by NASA to insulate their rockets. Sounds super sciencey right? While the principal behind the science, radiant heat transfer, might sound complicated it is actual principles fairly straightforward.

Northland, the makers of the Fire Pit Grass Guard use high shine metals that naturally reflect heat sources. They then add aluminum which acts as a heat sink. Finally they use several layers of metal each with an air space which increases the insulation effect.

Do you need the Deck Defender and Grass Guard Fire Pit Heat Shield?

The most common reasons for using a fire pit grass guard is of course to prevent heat from disturbing the plant life under the fire pit. Fire pits naturally create a ton of heat which can damage grass or vegetation underneath. You can avoid this by simply moving your fire pit every time you use it if you use it infrequently or have a large backyard. If not, or you don’t want to go through that hassle the grass guard fire pit heat shield is your best option.

The reason you might need a deck defender fire pit heat shield is if you notice black spots or browning on your patio deck. This can happen on any surface such as wood, wood composite or even cement patios. Your patio deck probably isn’t that big so you can’t move the fire pit around too much to avoid wear spots.

The third and probably least thought of reason to buy the fire pit heat shield is to simply raise the fire pit higher to better heat the things (mainly you) around it. We get asked all the time what kind of stand to use for a fire pit and we always recommend the deck defender and grass guard. It provides a safe platform for wood burning fire pits that will not get overheated and melt under normal and even heavy use.

Fire Pit Heat Guard Specs

Size – 26 x 26 x 4 inches

Weight – 20 pounds

Setup – No assembly required

Warranty – 2 years

Weight Capacity – 300 pounds

The Deck Defender & Grass Guard Fire Pit Heat Shield is must have for those of us who use their wood burning fire pits often. We recommend them for anyone wanting to protect their lawn and patio.

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