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You are here: Home / Archives for HVAC

January 26, 2023

Old verses new with big savings

Just look at the difference in size between the old furnace and the new furnace. Physically the new one is one quarter the size of the old one. Heat output at 100,000 BTU, the new one is just over half the size of the big brute. The new furnace has a blower and the heated […]Read More about Old verses new with big savings

Article by David Roche / HVAC, Old Homes Leave a Comment

November 24, 2022

Why is the AC condenser suspended

That’s a great question, and we are asked it all too often and now you will know. The two options for the condenser are to be installed on a pad, the most common option or suspended on brackets. Suspended condenser units became popular about fifteen years ago. When a contractor was installing the heating and […]Read More about Why is the AC condenser suspended

Article by David Roche / HVAC, New Construction Leave a Comment

November 3, 2022

Gas line “appliance connectors”

The yellow flexible pipe pipe on the gas line to the furnace is a problem. Flexible connectors are not permitted to go through any wall of any kind. The metal wall of the furnace cabinet becomes the excluding factor. Equally bad is that the edges of the hole in the cabinet are sharp and could […]Read More about Gas line “appliance connectors”

Article by David Roche / HVAC, Plumbing, Product Info, Safety Leave a Comment

September 16, 2022

Union inside Furnace enclosure

In the photo there is a big nut on the pipe going into the controller of this furnace. As piping is connected together coming from the controller and in the opposite direction from the gas line you need a way of connecting both pipes: a union. There is a lot of discussion about there being […]Read More about Union inside Furnace enclosure

Article by David Roche / HVAC, Safety Leave a Comment

September 8, 2022

“Incomplete Installation” of Furnace

A higher efficiency furnace costs more than a standard furnace. Manufacturers realized there was a simple way to make a relatively ordinary furnace high efficiency and add a few bucks to the price. The idea is simple and straight forward. A gas furnace sucks in air and burns it with the gas, the air and […]Read More about “Incomplete Installation” of Furnace

Article by David Roche / HVAC Leave a Comment

August 4, 2022

Propane Tank Certification

You may have a large propane tank in your side yard and wonder if it needs re-qualification? (Inspection, testing and stamped as functional for use) Propane gas cylinders like those twenty pound cylinders commonly used for gas grills are required to be re-qualified, ten years after the original date of manufacture. Then they must have […]Read More about Propane Tank Certification

Article by David Roche / HVAC, Plumbing Leave a Comment

July 28, 2022

Badly Installed Air Conditioners (poor clearances)

As a home owner you may not have a lot of knowledge about the work a contractor is hired to do. When this installation was completed it probably looked like a really professional job and money well spent. But was it, our inspection revealed numerous issues with just the installation of the condenser units. All […]Read More about Badly Installed Air Conditioners (poor clearances)

Article by David Roche / HVAC Leave a Comment

July 24, 2022

Heatwave, Help Your AC Efficency

The whole country is in the middle of a heatwave and our area is no different. One hundred degree days are becoming the norm with high eighties being a welcome break. These temperatures put a lot of strain on your air conditioning system and can run up your electric bill. There is a lot you […]Read More about Heatwave, Help Your AC Efficency

Article by David Roche / HVAC, Maintenance Leave a Comment

July 5, 2022

It’s Super Hot Help Your AC Cool Better

Temperatures this summer are breaking records and matching others, there have been days where Dayton has been hotter than Florida and this puts a lot of pressure on your air conditioning system. Two simple things you can do to help your system: 1) Make sure your return filters are clean, this lets more air through […]Read More about It’s Super Hot Help Your AC Cool Better

Article by David Roche / General, HVAC, Maintenance Leave a Comment

July 2, 2022

Unused Heating Oil Tank Requires Removal

Between the days of heating a home with coal and today’s natural gas there was a period of high demand for fuel oil as customers converted and modernized their heating systems. Starting in the 1940’s heating oil was considered a cleaner alternative to coal and so much easier to store. This love affair continued thru […]Read More about Unused Heating Oil Tank Requires Removal

Article by David Roche / Oil Tanks, Safety 2 Comments

December 18, 2021

Perfectly Installed Furnace, Potential Fire Hazard

The installer did a great job when this furnace was installed. They dropped a liner down the existing chimney to be sure that there would be no issues. The flue pipe from the furnace only required single wall pipe and yet they upgraded to double wall “B-vent” pipe. They were doing it correctly. They left […]Read More about Perfectly Installed Furnace, Potential Fire Hazard

Article by David Roche / HVAC Leave a Comment

July 6, 2021

Lost The Toilet Brush In The Heating Duct

How dirty can “in floor” heating ducts get? It’s not something most people think about. Vents near a dog food bowl tend to accumulate bits of kibble that escapes the hungry hounds appetite. Candy and small toys that junior looses are often hidden in there, but nothing as bad as the duct in this house. […]Read More about Lost The Toilet Brush In The Heating Duct

Article by David Roche / Funny, HVAC Leave a Comment

May 16, 2021

Air Conditioning Not Cooling Bedrooms

As warmer weather approaches thermostats are being switched from Heat to Cool in homes across the country. The satisfaction of knowing your system is ready and will be there to cool your house down to a comfortable temperature when it gets unbearable outside. These desires for a comfortable house is not necessarily the same in […]Read More about Air Conditioning Not Cooling Bedrooms

Article by David Roche / HVAC Leave a Comment

May 13, 2021

Asbestos Covered Boiler in Old House

In the basement of a 1920s home the original cast iron boiler was still sitting in the middle of the room. It appeared everyone who passed it they rubbed against it, put their hands on it and marveled at its size without thinking about its consequences. This beast of a boiler had been replaced ten […]Read More about Asbestos Covered Boiler in Old House

Article by David Roche / HVAC, Old Homes, Safety Leave a Comment

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Inspectors’ Recent Posts


Gas Line Dirt Legs

March 28, 2025 By David Roche

Gas and particularly natural gas piping may have traces of sediment or particulates in it, especially if work has been done to the underground piping under the street. To trap any contaminates before they flow into the appliance, blocking the burner and creating problems for the home owner a series of dirt legs are installed. […]Read More about Gas Line Dirt Legs

Thermostat Placement Is Crucial

March 13, 2025 By David Roche

A badly placed thermostat plays havoc with the heating and cooling of a house. In this case the wall light creates a warm zone beside the thermostat causing it to register hotter than the rest of the house. This means that it reaches what it registers as the set temperature shutting the furnace down before […]Read More about Thermostat Placement Is Crucial

Bath Overflow Loose

January 25, 2025 By David Roche

All too often the overflow on the bathtub is loose or worse yet loose and the gasket damaged. If the bath is filled up to the overflow and it is loose the water will go down behind the tub which if it’s on the second floor could damage the ceiling. The water can also create […]Read More about Bath Overflow Loose

Bonding Gas Piping

January 8, 2025 By David Roche

A bonding wire is often mistaken for a ground wire, it does not go to ground but back to the electric panel. When it is connected to black iron *(steel)* piping the paint under the clamp must be removed with a rasp or sandpaper to make a good contact, paint reduces the contact rendering the […]Read More about Bonding Gas Piping

High Efficiency Furnaces In Attic

December 31, 2024 By David Roche

High efficiency furnaces recognisable by the white PVC flue pipe, installed in an unheated attic is not your best choice of location, it may be the only place to put it which does not change the fact that it is not ideal. Yes, many builders and furnace installers are installing them in the attic without […]Read More about High Efficiency Furnaces In Attic

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