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Boiler Protection Valve

$339.75

Thermostatic mixing valve for boiler protection against acid corrosion.

Acting temperature: 130°F - 55°C

Protect boiler inner wall from condensation. The exhaust gas will condensate in acid water when the heating return is less than 130°F. Acid water on the inner wall will reduce greatly the boiler lifetime.

1 ¼": UNI 15-50, Pellet 20-50, EKO 15-35 - Flow coefficient Kvs 7.0

2": Up to UNI 150, Pellet 150, Eko 150 - Flow coefficient Kvs 15.8

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Size: 1 ¼ inch

  • 1 ¼ inch
  • 2 inch
  • 3 inch
  • 4 inch
$339.75
Out of stock

Customer Success Stories

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Switching to MBtek was one of the best upgrades we’ve made to our home. We were dealing with uneven temperatures, noisy cycling, and a system that always felt like it was working overtime—especially on colder nights. From the first conversation, MBtek helped us understand what was actually happening with our setup and guided us toward the right solution instead of a one-size-fits-all recommendation. The ordering process was straightforward, everything arrived exactly as expected, and the quality of the components was obvious the moment we opened the boxes.

The Perfect Alternative to Natural Gas

High efficiency for heating, cooling, and hot water with low electric bills

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Heats my home nicely and economically. The cold weather does not seem to affect the pump. Overall I'm very happy with the system. The techs have been very helpful whenever I have had questions regarding installation, etc.

Reliable Heating in Cold Weather

Economical performance that isn't affected by low temperatures.

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I recently got my new Apollo 5-ton air-to-water heat pump installed, and it came out real nice. It's real nice and has a real nice look to it. I am very impressed with the finish of this unit; everything's neat, everything's dressed, it's all clean, painted, airtight, and dry. It's also very quiet. The old unit used to sound like a rocket ship, and this unit is very quiet. I'm very happy with my unit so far. We've gotten down into the 30s, and this thing has no problem keeping up so far. I've noticed the air is hotter, so it doesn't come on for as long, and I'm thinking this is probably making a little hotter water, which is nice.

Powerful Performance, Whisper-Quiet Comfort

High efficiency heating and whisper-quiet operation for a more comfortable home

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I purchased a six-ton air-to-water heat pump about three months ago and have been using it this winter. It is doing a great job with the heating system. It complements my existing solar hot water system and gas boiler system. The heat pump does a great job producing the hot water I need for my radiant heat and fan coils. When the unit is running, it is very, very quiet. I can see all the operating parameters on the digital display and through the Wi-Fi app that comes with the unit, which allows me to make any adjustments I need. I look forward to using the unit for summer cooling this year.

Seamless Integration & High-Efficiency Heating

A versatile solution that complements solar and gas systems for year-round comfort.

Thermostatic mixing valve for boiler protection against acid corrosion.

Acting temperature: 130°F - 55°C

Protect boiler inner wall from condensation. The exhaust gas will condensate in acid water when the heating return is less than 130°F. Acid water on the inner wall will reduce greatly the boiler lifetime.

1 ¼": UNI 15-50, Pellet 20-50, EKO 15-35 - Flow coefficient Kvs 7.0

2": Up to UNI 150, Pellet 150, Eko 150 - Flow coefficient Kvs 15.8

Customer Reviews

Based on 6 reviews
83%
(5)
17%
(1)
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J
JOHN KAUFMAN (Natick, US)
Installed 2 inch boiler protection valve working great

Install 2 inch boiler protection valve on twin boiler install… Very concerned about boilers condensing this valve works great in addition to a hydraulic separator. I’m very pleased with the valve.

J
Jean Mailhot
Wood boiler order

I have received my boiler at the date I have asked for and in perfect condition since it was properly packaged and protected.

J
Joe Evans (Calhan, US)
1-1/4 thermostatic boiler protection valve

Valve was easy to plumb in once I understood how it worked. Did not come with any kind of instructions, MBtek website has a diagram of how this worked. Basically, AB port goes to the boiler intake (mixed water), and the water exit (heated water) gets piped to B port this forms a loop until the mixing valve begins to open A port (cold water). This prevents the boiler from running to cold which can cause an acidic condensate from the pellets burning, which over time will eat your boiler from the inside out. Be sure to install this to protect your investment.

C
Curtis Clark (Freeville, US)

Im very pleased with my order. Everything arrived as promised very nice service.

R
Robert Nunemacher (Columbia, US)
Boiler recirc. Valve

Good quality valve

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