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Yes
15 years
Condensing boilers are designed to increase energy efficiency by using the wasted heat from flue gases to heat water up before it even reaches the main boiler. These boilers are very energy efficient and are mandatory or preferred in many countries.
depends on whether you have to pay for the wood... if the wood is free then you can't beat the costs.
The SEER metric is used to measure a heating and cooling systems performance, which is determined largely by the HVAC equipment operating efficiency. SEER stands for Seasonal Energy Efficiency Rating.
Yes
furnace highest rating is 97 % efficient for a residential model. This is known as a condensing furnace.
That the efficiency of a Steam Engine could be improved by condensing the exhaust steam.
15 years
over300000 feet above sea level
Condensing boilers typically have efficiency greater than 90%. This is accomplished by using the exhaust gas to preheat the cold water. This cause the water vapor in the exhaust to condense and hence the name. Manufactures like Harscho tout efficiency of 96% and above.
a high efficiency furnace is a furnace that uses less electicity and saves on heating expences. they are very useful in the winter and great to lower your central heating bills.
pvc flue pipe and has a condensate drain
Divide the btu output rating by the btu input rating. Both of these values can be found on the furnace`s nametag.
Seasonal Energy Efficiency Ratio - the higher the number = more energy efficiency of the unit
92%
It's a matter of efficiency. Many makes have different models that have up to 98% efficiency. Generally, if you're replacing an older furnace ( fifteen years or more) with a new one, it will qualify.