Space Heating with Solar Energy

Transcription

1 FREE Space with Energy H eatin g S q u ar e F o o tag e R an g e b y C lim ate Z o n e Z O N E 1 Z O N E 2 Z O N E 3 Z O N E 4 Z O N E B tu 's B tu 's B tu 's B tu 's per s quar e foot B tu 's We can give you a solar heating performance estimate even in, or close to, your home town. This includes most countries in the world. See our Estimator Link and fill out the form that will show an estimated savings in electricity and heating fuel for the operation of our solar air heaters. We use a Govt of Canada/NRCCanmetENERGY developed program and NASA solar data to show heating months performance for a full year for most international regions. ( 12/10/2014 V6 Page 1

2 How to Read the Tables 1. Installation The SIS solar air heater has been developed to easily install in a room and operate like an electric room heater. In an average installation, the solar air heater is equivalent to about a 300 to 500 watt electric space heater, depending on the area you live in.the solar heater fan circulates the room air through the staged solar collectors in the heater that heat the air flow with solar energy. The solar heater fan operates by the sunlight shining on a photovoltaic panel (PV) so, unlike a room electric space heater, there is no household electric power used. The solar air heater hangs or is placed in a south facing window and uses solar radiation to heat the room air, to make up the room heat loses through the walls, ceiling, windows, and doors. 2. Make sure you have a south facing window that will take a solar air heater approximately 24 inches x 48 inches. The heater will fit between the glass and blind or curtains. There is room for venetian blinds that you will leave slightly open to let the air flow through the blind louvers. Do not let the front of the heater touch the glass as you will lose heat. If the outside temperature is zero (0 F)(-17 C) the inside glass of a standard double pane window will only be about 44 F (7 C). (You are also losing about 34 btu/hr per sqft area of the window through conduction and radiative heat loss.) Remember, if the window is low-e glass and/or argon filled, the solar radiation entering the window is filtered too low to make the solar air heater run effectively. 3. Shading Look out the window and see if there is shading that will block the sun. In winter the sun is low and houses or trees can block the solar energy. If you have high trees on the east and west sides of the house, these will cut off your winter morning and afternoon solar radiation (even trees that lose their leaves.) Roof overhangs and depth of the window may also cut off 2-3 hours of solar radiation in the mornings and afternoons. Again, the solar air heater will not be able to run effectively.4 4. Air Performance tables The following tables calculate how a solar air heater will perform in a room, with a double pane window, at a room temperature of 70 F (21 C), in a city at a specific latitude. (Important for the winter sun orientation.) If your state/province or location is not listed, pick a site closest on the same latitude as where you live. (we are adding locations all the time and if your location is not listed, let us know.) For each city the average temperature and heating months are listed. The heating months are used to calculate the fuel you use to keep the room at the set temperature. The heating zone map will give you an idea of heating costs throughout the country. The solar air heater also uses the heating months but since the sun does not shine all the time in most cities, it also factors the amount of sunny days during these heating months. Winter (65-70%) Spring and Fall (70-80%) Summer (not calculated if it is not a heating month) (80-90%). 5. Select the heating You use to Heat the Room or your House There are four tables that compare the fuel you heat your room or house with to the performance of a solar air heater for that site and weather conditions. Each fuel table ELECTRICITY, NATURAL GAS, PROPANE, AND HEATING OIL, shows the latest unit price for the city and the total fuel cost to heat the room for the heating months. The fuel cost is also shown for the solar air heater that uses free solar energy and the cost of the home fuel to make up for the non-sunny days during the heating months. The difference between the normal heating fuel used with no solar and the heating fuel used with a solar air heater is the solar savings for the heating months. A simple payback is calculated by dividing the manufacturer's suggested retail price with the cost with solar to show the number of years it will take to pay for the cost of the solar heater in fuel savings. The fuel savings give you an idea of what a solar air heater can save, where energy is increasing 10% per year, inflation is 2% and a discount of 5%. (Take a look on the Electricity Table at the variation in electricity costs per kwh that is happening all over the country.) calculations and data are generated by the Govt of Canada NRC/Canmet/ENERGY program using 12/10/2014 V6 Page 2

3 ELECTRICITY Site Data SIS with Residential Electrical SIS SIS Temp. Cost/kwh no with with with (b) AK Anchorage N , ,467 CA Los Angeles N ,974 CO Denver N ,229 FL Maimi N ,393 GA Atlanta N ,197 HI Honululu N ,816 ID Boise N ,987 IL Chicago N ,542 KA Witchita N ,519 MA Boston N ,708 MN Minneapolis N ,568 MO St. Louis N ,187 MT Butte N ,392 NM Albuquerque N ,892 NV Los Vegas N ,548 NY New York N ,490 OR Portland N ,670 TX Dallas N ,534 VT Burlington N ,482 WA Seattle N ,194 WI Madison N ,633 AB Edmonton N (2.16 C) ,981 BC Vancouver N (9.66 C) ,336 ONT Toronto N ( (7.22 C) ,944 12/10/2014 V6 Page 3

4 NATURAL GAS Site Data SIS with Residential Natural Gas SIS SIS Temp. Cost /1000cuft no with with with (b) AK Anchorage N ,257 CA Los Angeles N ,539 CO Denver N ,902 FL Maimi N GA Atlanta N ,003 HI Honululu N ,141 ID Boise N IL Chicago N ,592 KA Witchita N MA Boston N ,729 MN Minneapolis N ,424 MO St. Louis N MT Butte N ,821 NM Albuquerque N ,088 NV Los Vegas N ,777 NY New York N ,047 OR Portland N ,081 TX Dallas N ,682 VT Burlington N ,445 WA Seattle N ,229 WI Madison N ,606 AB Edmonton N (2.16 C) /GJ ,112 BC Vancouver N (9.66 C) /GJ ,283 ONT Toronto N ( (7.22 C) /GJ ,432 12/10/2014 V6 Page 4

5 PROPANE Site Data SIS with Residential Propane SIS SIS Temp. Cost /gal no with with with (b) AK Anchorage N ,898 CA Los Angeles N ,085 CO Denver N ,662 FL Maimi N ,674 GA Atlanta N ,136 HI Honululu N ,598 ID Boise N ,021 IL Chicago N ,038 KA Witchita N ,268 MA Boston N ,854 MN Minneapolis N ,176 MO St. Louis N ,364 MT Butte N ,257 NM Albuquerque N ,157 NV Los Vegas N ,400 NY New York N ,992 OR Portland N ,594 TX Dallas N ,258 VT Burlington N ,629 WA Seattle N ,160 WI Madison N ,913 AB Edmonton N (2.16 C) /l ,361 BC Vancouver N (9.66 C) /l ,075 ONT Toronto N ( (7.22 C) /l ,839 12/10/2014 V6 Page 5

6 HEATING OIL Site Data SIS with Residential Oil SIS SIS Temp. AK Anchorage N Cost /gal no with with with (b) CA Los Angeles N ,810 CO Denver N ,435 FL Maimi N ,887 GA Atlanta N ,357 HI Honululu N ID Boise N ,432 IL Chicago N ,969 KA Witchita N ,837 MA Boston N ,050 MN Minneapolis N ,168 MO St. Louis N ,398 MT Butte N ,055 NM Albuquerque N ,726 NV Los Vegas N ,384 NY New York N ,419 OR Portland N ,843 TX Dallas N ,945 VT Burlington N ,745 WA Seattle N ,848 WI Madison N ,473 AB Edmonton N (2.16 C) /l ,973 BC Vancouver N (9.66 C) /l ,684 ONT Toronto N ( (7.22 C) /l ,636 12/10/2014 V6 Page 6