Posts in HVAC
Boiler Inspections - Finding Exhaust Gas Leaks

Without question, the biggest problem that I find with boilers on old Minneapolis and Saint Paul homes is leaking exhaust gas. While every heating contractor knows to look for backdrafting at the vent while performing maintenance checkups on boilers, I've found that many contractors don't bother to check for exhaust gas leaking around the jacket of the boiler, which can be just as serious of an issue.

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Why Is My Water Heater Backdrafting?

The most common question that I get when I find a backdrafting water heater is "How can this be fixed?" There are many potentials reasons for a water heater backdrafting, but there are several basic things to check - any one of these conditions could be enough by itself to cause a water heater to backdraft.

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How Serious Is A Cracked Heat Exchanger?

I took home a furnace that had a cracked heat exchanger, and I removed the heat exchanger cell that had the largest cracks. You can see the cracks for yourself below - click on any of the photos for a larger version.

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Are High Efficiency Furnaces Worth The Extra Money?

In my blog about window replacements, I made it clear that you'll never get a return on your investment by replacing windows. So what about furnaces? If you're replacing your furnace, is it worth installing a high efficiency furnace? We'll see.

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HRVs, Part 1 of 3: Why Houses Need Them & What They Do

As most people know, new houses are constructed much tighter than they used to be - they don't leak air all over the place. Today I'll share some basic information about how HRVs operate and why they're needed in today's newer, tighter houses.

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Forget Code, Bathrooms Need Fans.

For the last 800 years, building codes have allowed bathrooms to be built without exhaust fans. It's time for a change. It's time for bathroom exhaust fans to become a requirement in Minnesota, at least in bathrooms that have bath tubs or showers.For the last 800 years, building codes have allowed bathrooms to be built without exhaust fans. Exhaust fans aren't even a requirement here in Minnesota! This is a great example of how building codes are only minimum standards.

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