This type of unit is very popular overseas where many buildings do not have ductwork. They are becoming popular in the US where homes need to be cooled but no ductwork exists, such as in the case of homes heated with boilers (see Gas Boilers).
The system has an outside condensing unit, very similar to a regular split system air conditioner. It also has copper tubing running to an indoor unit. However, the indoor unit(s) (It can have multiple indoor units with one outdoor unit) are not ducted, they simply hang on a wall or mount in the ceiling. These are not put in a window – like the... [Read full article]
There are many heating and air conditioning systems to choose from today. The size and age of your home, as well as the number of rooms, climate, local and regional utility costs, and utility incentive/rebate programs are all factors that will affect the functionality and, therefore, selection of your system.
Consumers seeking to replace an existing system often choose a new unit with equal or higher efficiency ratings compared to their previous system. Replacing a unit that is 10- to 15-years-old may reduce natural gas or electricity costs by 30 to 50%.
Air Conditioning Facts:
The t... [Read full article]
The first and most important step in sizing a furnace is to do the heat loss calculation. When you are finished you will have a number that is the Design Heat Loss of the house. Let's say that number is 52,234 BTUH. This means that the house loses 52,234 BTU's each hour when the outdoor temperature is the Winter Outdoor Design temperature for your area.
Obviously, you want a furnace with an output of at least 52,234 BTUH. Most contractors, would add a safety factor to the requirement. After all, weather data is averaged to come up with the Winter Design Temperature and you want to be warm e... [Read full article]
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