Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
SVTPerformance's Chain of Restaurants
Road Side Pub
Home heating options/opinions
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Mr. Mach-ete" data-source="post: 8747912" data-attributes="member: 16424"><p>It all has to do with coefficient of performance ( C.O.P.), turning power into BTUs. Straight electric resistance heat has a COP of 1:1, 1 watt consumed=3.41 BTUs, not so good. Move up the scale to a air to air heat pump, 13 SEER let's say, the COP jumps to 2.5:1, roughly 8.5 BTUs per watt consumed. Jump again to Geothermal heat pump, 2 stage 27 SEER, the COP increases to 4.5:1 or 15.34 BTUs per watt consumed. The more efficient the system the more costly the installation, there is a pay back period how ever.</p><p></p><p>The problem with gas and oil fired equipment is converting wattage consumption over to fossil fuel efficiency consumption, AFUE. One gallon of #2 home heating oil will produce 140,000 BTU of heat. Let's not forget, even the best running oil fired equipment losses 15% of the heat up the flue leaving a not so good AFUE rating of 85%. What does 1 gallon of heating oil cost? How much would it cost to reinstall a new oil fired steam boiler? These things need to be considered.</p><p></p><p>Natural gas and propane, if fired in a condensing furnace will have AFUE ratings in the high 90's, very efficient. One pound of Propane yields 104,000 BTUs, but with the installation of a dual heat exchanger forced air furnace you only loose 5% up the flue, not bad. What does a pound of propane cost?</p><p></p><p>The bottom line is you need to have a load calculation performed to determine how many BTUs of heat energy a hour it takes to keep it heated at a specific set point temperature. General rule of thumb is 12,000 BTUs for every 400-450 square foot in your home, you can do the math. Once you figure out your capacity then you can do some consumption conversion, either COP Vs. Kilowatt rates or AFUE, less flue losses, Vs. gallons or pounds of fuel consumed. Don't forget fossil fuel furnaces and boilers consume electricity as well.</p><p></p><p>In short, if you have ducting through out your house, a nice 2 stage air to air heat pump with a high efficiency gas furnace back up is a great system (dual fuel). Not to mention, uncle Sam is offering tax credits for any system over 14 SEER. I'm not sure what your budget is, you might be in for sticker shock, but your fuel bills will be minuscule compared to electric base board through out the house.</p><p></p><p>Call your local HVAC contractor for more info, make sure he's licenced.</p><p></p><p>Maryland State Master HVACR 01-18062</p></blockquote><p></p>
[QUOTE="Mr. Mach-ete, post: 8747912, member: 16424"] It all has to do with coefficient of performance ( C.O.P.), turning power into BTUs. Straight electric resistance heat has a COP of 1:1, 1 watt consumed=3.41 BTUs, not so good. Move up the scale to a air to air heat pump, 13 SEER let's say, the COP jumps to 2.5:1, roughly 8.5 BTUs per watt consumed. Jump again to Geothermal heat pump, 2 stage 27 SEER, the COP increases to 4.5:1 or 15.34 BTUs per watt consumed. The more efficient the system the more costly the installation, there is a pay back period how ever. The problem with gas and oil fired equipment is converting wattage consumption over to fossil fuel efficiency consumption, AFUE. One gallon of #2 home heating oil will produce 140,000 BTU of heat. Let's not forget, even the best running oil fired equipment losses 15% of the heat up the flue leaving a not so good AFUE rating of 85%. What does 1 gallon of heating oil cost? How much would it cost to reinstall a new oil fired steam boiler? These things need to be considered. Natural gas and propane, if fired in a condensing furnace will have AFUE ratings in the high 90's, very efficient. One pound of Propane yields 104,000 BTUs, but with the installation of a dual heat exchanger forced air furnace you only loose 5% up the flue, not bad. What does a pound of propane cost? The bottom line is you need to have a load calculation performed to determine how many BTUs of heat energy a hour it takes to keep it heated at a specific set point temperature. General rule of thumb is 12,000 BTUs for every 400-450 square foot in your home, you can do the math. Once you figure out your capacity then you can do some consumption conversion, either COP Vs. Kilowatt rates or AFUE, less flue losses, Vs. gallons or pounds of fuel consumed. Don't forget fossil fuel furnaces and boilers consume electricity as well. In short, if you have ducting through out your house, a nice 2 stage air to air heat pump with a high efficiency gas furnace back up is a great system (dual fuel). Not to mention, uncle Sam is offering tax credits for any system over 14 SEER. I'm not sure what your budget is, you might be in for sticker shock, but your fuel bills will be minuscule compared to electric base board through out the house. Call your local HVAC contractor for more info, make sure he's licenced. Maryland State Master HVACR 01-18062 [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
SVTPerformance's Chain of Restaurants
Road Side Pub
Home heating options/opinions
Top