“Now it’s clear why your boiler is full and the radiators are barely warm”: the plumber was wrong and the owner was wrong 5 years ago

The house had expensive radiators and a 24-kilowatt Baxi Ecofour gas boiler, but it could not properly heat the 120-square-foot house. The reason was the wrong choice of pumps for heating.

The Italian high-speed pumps were set at maximum speed, resulting in rapid circulation of hot water and insufficient cooling in the radiators. As a result, the boiler was quickly shut down, assuming the house was heated.

The solution to the problem turned out to be simple: replace the pumps with less powerful ones and set them to the minimum speed that allowed it to reach the usual 30 liters per minute. After that, the house began to warm up pleasantly to a temperature of +50 degrees instead of +85 degrees as before.

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