It may seem like you can buy refrigerant without a license, but some laws prohibit certain types and amounts of refrigerant. This is an important and confusing question to answer. Especially if you need to buy some R410A refrigerant without a license. If you get the wrong answer you could be breaking the law. I’ve…
Line set protruding from crawl space of house before connecting to the heat pump. Should I evacuate the line or take a short cut?
A heat pump or air conditioner line set is a set of copper pipes that link the indoor and outdoor units of the system. When connected, these copper pipes are part of the sealed system under pressure that aid the flow of and move refrigerant (Freon) throughout the system. Most residential line sets these days…
You can test a heat pump in both the heat cycle in summer or the cool cycle in winter with some limitations. In the summer you should only run your heat pump in the heat cycle long enough to notice that it is heating. Too long would not be good. In the winter you should…
In this post I explain how a heat pump can cool a house in 100 degree weather
What not to do with excess line set
I’ve worked on a lot of furnaces and have yet to find one installed upside down. Not saying it hasn’t been done. The deception of being upside down can be that some furnaces can be installed in any position but the labels on the doors didn’t get turned over. Some labels can be removed and…
Yes you can install a heat pump or an AC unit under a deck if your local code enforcement allows it to be installed there. But it’s important to consider the air flow in and out of the unit. Top discharge heat pumps or air conditioners are the most common and have to have at…
No, a heat pump does not draw in outside air on it’s own. So how does a heat pump bring in outside air? Outside or fresh air is a function of the duct work not the heat pump. You can add a duct to the return air of the system that penetrates an outside wall….