Losing Heat Underground in your Outdoor Wood Furnace?

Losing Heat Underground in your Outdoor Wood Furnace?
Save Your Money Using Heat Mizer Insulated PEX Pip

Think you are smart by saving a buck on the PEX insulation underground pipe? Think again.

After 15 years in the industry, we have learned that one of the most important components of an outdoor boiler is the underground insulated PEX pipe. You should NEVER go cheap here. But don't overspend for poor quality either!

When you put the underground insulated PEX tubing in the ground, it should outlast all of us. 

Yet, some people still try to cut a few corners.  Consider these things: 

  1. If you save $1 per foot on underground pipe, you save $100 for a 100-foot run...great right?


  1. The term "PEX" stands for Polyethylene Cross-linked. In the manufacturing process, PEX must be heated to 180 degrees for 24 hours so that the bonds in Polyethylene will form - this is how PEX gets its strength.

 HOWEVER, many Chinese manufacturers have shipped container loads of PEX to the US without completing the crosslinking process. That pipe will fail. Don't buy "Do-Over Pipe". 

  1. The outer casing must be white. This is our proprietary brand image and it signifies two things - First, the outer casing needs to be a very specific thickness and elasticity. Too thin will fail, and too thick can get brittle and crack.

We have scientific proof of the exact thickness needed. Second, the white outer casing provides a safety feature...if the pipe is damaged in shipping or installation, the white turns to black, and you are protected from installing a product that will fail quickly.

  1. Some companies charge $12, $14, and even $18 per foot for the underground pipe! They claim it is better...it is not. The experts in this industry all agree that these IMPORTED super high-priced pipes FAIL often, and cost way too much.

Why You Should Get Heat Mizer Pipe from OutdoorBoiler.com?

1.) There are many PEX manufacturers who cut corners. We ONLY use PEX from the highest rated manufacturers whose products adhere to strict ASTM standards.

2.) Our pipe comes with a full replacement warranty.

3.) We have sold over one million feet of underground pipe and we have had precisely ZERO failures!

4.) Our pipe has the lowest heat loss in the industry - less than one degree of heat loss over a 100-foot run!

5.) Our Heat Mizer pipe costs only $6.95 per foot and is by far the BEST QUALITY pipe available, and therefore the BEST VALUE!



Can PEX pipe be buried?

Yes! PEX pipe can be buried underground BUT ONLY IF it is protected in a waterproof sleeve and insulated properly. 

What is the best insulated PEX pipe? 

Heat Mizer Brand Insulated PEX has the lowest heat loss and the most favorable warranty in the industry. At wholesale prices, Heat Mizer is about half the cost of other brands imported from Europe. 

What is the difference between "Non-O2 Barrier" pex tubing and "Oxygen Barrier" or "O2 Barrier" pex tubing? 

"Oxygen Barrier" is a premium upgraded version of PEX that contains a barrier that prevents oxygen from passing through the pipe into system water.

Oxygen enhances corrosion to boiler steel and components in systems that contain untreated water. Oxygen Barrier PEX is required for pressurized boiler systems. Non-O2 Barrier pex tubing is used for boiler systems that are open to the atmosphere (such as most outdoor boilers) and other systems that are non-pressurized. 

Liquid Armor Water Treatment is recommended for ALL systems, whether pressurized or non-pressurized.  Learn more

What is the best PEX insulation?

Heat loss occurs from conduction, convection, and radiation. Only well-designed products protect against all three and Heat Mizer protects against all three forms of heat loss! Conduction heat loss is prevented with premium insulation and the creative use of dead air space.

Convection heat loss is prevented by the "Forever Waterproof" outer casing manufactured in Canada where the good folks there know how to protect against the damaging cold.

The outer casing is made of the highest grade composite compound that will outlast your lifetime and the life of the building you are heating. Finally, radiant heat loss is prevented by the only radiant barrier in the industry that provides premium insulative qualities. Learn more.

Our Heat Mizer pipe is protecting thousands of customers nationwide, giving them huge savings each year. We have learned a LOT about how to make the best underground pipe over the years and there is a lot of science to our pipe. Don't go cheap on the underground pipe.