John Griffin

Many times during your career you will or have come upon a situation where you will need to call for help. I am not talking about the need for physical assistance to complete a job, but rather the need for technical assistance. Who do you call? The owner of the company, large or small, wears many hats. He or she ...

It’s been a while since I looked at the system relief valve as something there just to annoy me. In the field, I was the one the boss always yelled at for replacing so many! But, for good reason. I don’t want to have one fail on me when you need it to work. I remember one time when I ...

One thing that always surprises me in many conversations is the understanding or misunderstanding of the purpose of the pressure reducing valve (PRV) in the hydronic heating system. The PRV is designed to reduce the incoming water pressure’what we call ‘street pressure”‘to the operating pressure required for a particular application. The PRV is normally set to 15 PSI from the ...

A few years ago, I wrote an article about soot and how it can occur. The article was published and I received many comments about it ‘ most good and a few bad. Such is the life I lead. The interesting thing about it was that many e-mails and phone questions I received had nothing to do with the article ...

Pick up the newspaper or turn on the news and you’ll hear about the housing market downturn. The market is so bad that some people are simply walking away from their homes and others are doing whatever is necessary for them to sell it. If the market is not enough to make you stand up and take notice, just look ...