Bathroom and kitchen fans are rated to move a certain volume of air, but do they actually move what they say they move? A study done in 1990 by CMHC says "rarely". In fact, on the average, measured volumes were 44% of rated flow for bathroom fans and 38% of rated flow for kitchen fans. The primar...
The best way for air to move through a duct is to have a straight duct with a smooth inside wall and a round form will have the smallest surface area to cause the air to slow down. That straight smooth round duct is what is considered the benchmark for good ducting.
Everything else is measure...
Some rooms are colder than others, or a forced air system works well for heating but not air conditioning. Although such problems may require repositioning ductwork, or adding booster fans -- the first thing to check is that the ductwork is balanced and balanced differently for the two differ...
When you just can't get enough hot air to come out of that back bedroom floor grill and you have tried everything (like balancing your heating system), there is still hope.
We took a look at two fans on the market designed to boost that hot air.
The first, and the easiest to install and use is ...
Slots are simply small passageways through something. In this segment we looked at three very nifty Slots -- all completely different.
THE INSULATED MAIL SLOT
How about a through the door mail slot that does not give you cold drafts?
The Draft Dodger has two gasketed and spring load...
When air flows through the edges of carpets, the carpet acts as a filter and collects whatever is in the air. Hence we often find dirt streaks around heating outlets where some of the air sneaks under the grill and through the rug.
Often, streaks are found near baseboards where household air flo...
Building codes require that a heating system be able to just barely maintain a comfortable house during the coldest day of the year. Hence the size of the heating system depends not only on the size of the house but on where it is located and how well it is winterized (sealed and insulated). The ...
Venting a cathedral or low slopped roof is not easy. What you need to accomplish is to have continuous air movement from the soffits up between all the roof joists and somehow out the top. That is what ridge vents were invented to do. But it must be noted that a ridge vent without good open conti...
As weather patterns change we are getting longer colder periods than traditionally in many areas of the country -- and with that, more and more complaints of water pipes freezing. Finding the frozen point can be difficult, thawing it can be problematic but if you have done those two, go one step ...
Because of the seriousness of the issue, I want to take a moment to present my credentials other than that guy that has been on TV and radio for 42 years. In the 1980’s I was one of the primary instructors for the R-2000 energy efficiency program teaching contractors across Québec through the AP...
