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 5 20-2 5 B tu 's 30-3 5 B tu 's 35-4 0 B tu 's 40-4 5 B tu 's per s quar e foot 45-5 0 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. (www.retscreen.net) 12/10/2014 V6 Page 1
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
ELECTRICITY Site Data SIS with Residential Electrical SIS SIS Temp. Cost/kwh no with with with (b) AK Anchorage N61.2 37.4 12 0.156 6 3.4 11.8 0.21 1,073 560 513 0.93 17,467 CA Los Angeles N33.9 62.5 7 0.322 2 2.7 14.9 0.18 201-70 271 1.75 8,974 CO Denver N39.8 50.3 9 0.299 5 3.5 15.3 0.13 459 124 335 1.42 11,229 FL Maimi N25.7 75.1 0 0.306 1 1.8 13.1 0.12 26-56 82 5.79 2,393 GA Atlanta N33.4 60.2 7 0.284 2 2.3 12.6 0.13 267 47 220 2.16 7,197 HI Honululu N21 77 0 0.351 1 2.2 13.9 0.38 23-328 351 1.35 11,816 ID Boise N43.6 51.9 9 0.288 4 2.6 11.5 0.11 263 107 156 3.04 4,987 IL Chicago N42 50.2 8 0.257 5 2.4 12.3 0.12 419 161 258 1.84 8,542 KA Witchita N37.7 56.8 7 0.296 3 2.3 13 0.13 310 138 172 2.76 5,519 MA Boston N41.7 50.6 10 0.237 4 2.7 11.1 0.16 542 194 348 1.36 11,708 MN Minneapolis N44.9 46.5 9 0.254 5 2.9 13.2 0.13 557 212 345 1.38 11,568 MO St. Louis N38.7 55.9 7 0.263 3 1.8 10.1 0.12 285 152 133 3.57 4,187 MT Butte N46.0 40 12 0.249 5 3.7 12.5 0.11 585 217 368 1.29 12,392 NM Albuquerque N35 57.2 7 0.362 4 3 16.6 0.14 257 47 210 2.26 6,892 NV Los Vegas N36.1 68.6 5 0.368 4 4.1 17.6 0.13 180-78 258 1.84 8,548 NY New York N40.8 54 8 0.257 3 2.3 11.6 0.20 571 200 371 1.28 12,490 OR Portland N45.6 54 10 0.229 3 2.9 11.8 0.11 310 77 233 2.04 7,670 TX Dallas N36.0 55.3 7 0.322 1 2.8 15.2 0.12 339 81 258 1.84 8,534 VT Burlington N44.5 46.3 9 0.243 5 2.7 12.2 0.18 753 296 457 1.04 15,482 WA Seattle N47.5 52.1 10 0.217 4 2.8 11.4 0.09 274 83 191 2.49 6,194 WI Madison N43.1 47.3 9 0.255 5 2.9 13 0.15 629 225 404 1.18 13,633 AB Edmonton N53.3 35.9 (2.16 C) 12 0.232 5 3.5 13.2 0.15 886 358 528 0.90 17,981 BC Vancouver N49.0 49.4 (9.66 C) 12 0.202 5 2.6 9.6 0.11 385 133 252 1.88 8,336 ONT Toronto N43.7 45 ( (7.22 C) 10 0.233 5 2.5 11.2 0.17 756 314 442 1.07 14,944 12/10/2014 V6 Page 3
NATURAL GAS Site Data SIS with Residential Natural Gas SIS SIS Temp. Cost /1000cuft no with with with (b) AK Anchorage N61.2 37.4 12 0.156 6 3.4 11.8 9.43 163 85 78 6.09 2,257 CA Los Angeles N33.9 62.5 7 0.322 2 2.7 14.9 11.06 43-15 58 8.19 1,539 CO Denver N39.8 50.3 9 0.299 5 3.5 15.3 7.84 93 25 68 6.99 1,902 FL Maimi N25.7 75.1 0 0.306 1 1.8 13.1 15.77 12-25 37 12.84 803 GA Atlanta N33.4 60.2 7 0.284 2 2.3 12.6 12.38 86 15 71 6.69 2,003 HI Honululu N21 77 0 0.351 1 2.2 13.9 32.97 7-97 104 4.57 3,141 ID Boise N43.6 51.9 9 0.288 4 2.6 11.5 8.58 70 28 42 11.31 970 IL Chicago N42 50.2 8 0.257 5 2.4 12.3 8.11 96 37 59 8.05 1,592 KA Witchita N37.7 56.8 7 0.296 3 2.3 13 9.39 76 34 42 11.31 993 MA Boston N41.7 50.6 10 0.237 4 2.7 11.1 16.28 187 67 120 3.96 3,729 MN Minneapolis N44.9 46.5 9 0.254 5 2.9 13.2 9.27 134 51 83 5.72 2,424 MO St. Louis N38.7 55.9 7 0.263 3 1.8 10.1 8.02 65 34 31 15.32 582 MT Butte N46.0 40 12 0.249 5 3.7 12.5 8.31 150 56 94 5.05 2,821 NM Albuquerque N35 57.2 7 0.362 4 3 16.6 8.76 55 10 45 10.56 1,088 NV Los Vegas N36.1 68.6 5 0.368 4 4.1 17.6 9.57 45-19 64 7.42 1,777 NY New York N40.8 54 8 0.257 3 2.3 11.6 11.47 111 39 72 6.60 2,047 OR Portland N45.6 54 10 0.229 3 2.9 11.8 10.18 97 24 73 6.51 2,081 TX Dallas N36.0 55.3 7 0.322 1 2.8 15.2 8.47 81 19 62 7.66 1,682 VT Burlington N44.5 46.3 9 0.243 5 2.7 12.2 13.04 185 73 112 4.24 3,445 WA Seattle N47.5 52.1 10 0.217 4 2.8 11.4 10.76 111 34 77 6.17 2,229 WI Madison N43.1 47.3 9 0.255 5 2.9 13 9.66 137 49 88 5.40 2,606 AB Edmonton N53.3 35.9 (2.16 C) 12 0.232 5 3.5 13.2 5.84/GJ 124 50 74 6.42 2,112 BC Vancouver N49.0 49.4 (9.66 C) 12 0.202 5 2.6 9.6 9.564/GJ 121 42 79 6.01 2,283 ONT Toronto N43.7 45 ( (7.22 C) 10 0.233 5 2.5 11.2 8.84/GJ 93 39 54 8.80 1,432 12/10/2014 V6 Page 4
PROPANE Site Data SIS with Residential Propane SIS SIS Temp. Cost /gal no with with with (b) AK Anchorage N61.2 37.4 12 0.156 6 3.4 11.8 4.94 869 468 401 1.18 13,898 CA Los Angeles N33.9 62.5 7 0.322 2 2.7 14.9 3.95 161-56 217 2.19 7,085 CO Denver N39.8 50.3 9 0.299 5 3.5 15.3 3.48 436 118 318 1.49 10,662 FL Maimi N25.7 75.1 0 0.306 1 1.8 13.1 4.85 38-81 119 3.99 3,674 GA Atlanta N33.4 60.2 7 0.284 2 2.3 12.6 3.13 230 41 189 2.51 6,136 HI Honululu N21 77 0 0.351 1 2.2 13.9 6.11 13-189 202 2.35 6,598 ID Boise N43.6 51.9 9 0.288 4 2.6 11.5 2.53 217 88 129 3.68 4,021 IL Chicago N42 50.2 8 0.257 5 2.4 12.3 2.05 256 98 158 3.01 5,038 KA Witchita N37.7 56.8 7 0.296 3 2.3 13 3.48 297 133 164 2.90 5,268 MA Boston N41.7 50.6 10 0.237 4 2.7 11.1 3.79 460 164 296 1.60 9,854 MN Minneapolis N44.9 46.5 9 0.254 5 2.9 13.2 3.53 539 205 334 1.42 11,176 MO St. Louis N38.7 55.9 7 0.263 3 1.8 10.1 3.48 296 158 138 3.44 4,364 MT Butte N46.0 40 12 0.249 5 3.7 12.5 3.28 624 232 392 1.21 13,257 NM Albuquerque N35 57.2 7 0.362 4 3 16.6 2.99 197 36 161 2.95 5,157 NV Los Vegas N36.1 68.6 5 0.368 4 4.1 17.6 3.17 157-168 325 1.46 7,400 NY New York N40.8 54 8 0.257 3 2.3 11.6 4.00 417 146 271 1.75 8,992 OR Portland N45.6 54 10 0.229 3 2.9 11.8 2.29 231 57 174 2.73 5,594 TX Dallas N36.0 55.3 7 0.322 1 2.8 15.2 3.25 328 78 250 1.90 8,258 VT Burlington N44.5 46.3 9 0.243 5 2.7 12.2 4.13 618 243 375 1.27 12,629 WA Seattle N47.5 52.1 10 0.217 4 2.8 11.4 4.01 437 132 305 1.56 10,160 WI Madison N43.1 47.3 9 0.255 5 2.9 13 3.68 552 198 354 1.34 11,913 AB Edmonton N53.3 35.9 (2.16 C) 12 0.232 5 3.5 13.2 0.71/l 568 230 338 1.41 11,361 BC Vancouver N49.0 49.4 (9.66 C) 12 0.202 5 2.6 9.6 0.88/l 418 144 274 1.73 9,075 ONT Toronto N43.7 45 ( (7.22 C) 10 0.233 5 2.5 11.2 0.88/l 530 6 524 0.91 17,839 12/10/2014 V6 Page 5
HEATING OIL Site Data SIS with Residential Oil SIS SIS Temp. AK Anchorage N61.2 37.4 12 0.156 6 3.4 11.8 Cost /gal no with with with (b) CA Los Angeles N33.9 62.5 7 0.322 2 2.7 14.9 4.21 112-39 151 3.15 4,810 CO Denver N39.8 50.3 9 0.299 5 3.5 15.3 4.25 349 94 255 1.86 8,435 FL Maimi N25.7 75.1 0 0.306 1 1.8 13.1 4.21 21-46 67 7.09 1,887 GA Atlanta N33.4 60.2 7 0.284 2 2.3 12.6 4.21 203 36 167 2.84 5,357 HI Honululu N21 77 0 0.351 1 2.2 13.9 ID Boise N43.6 51.9 9 0.288 4 2.6 11.5 4.21 236 96 140 3.39 4,432 IL Chicago N42 50.2 8 0.257 5 2.4 12.3 4.22 346 133 213 2.23 6,969 KA Witchita N37.7 56.8 7 0.296 3 2.3 13 3.06 171 76 95 5.00 2,837 MA Boston N41.7 50.6 10 0.237 4 2.7 11.1 4.21 335 120 215 2.21 7,050 MN Minneapolis N44.9 46.5 9 0.254 5 2.9 13.2 3.53 353 135 218 2.18 7,168 MO St. Louis N38.7 55.9 7 0.263 3 1.8 10.1 3.15 176 94 82 5.79 2,398 MT Butte N46.0 40 12 0.249 5 3.7 12.5 3.11 388 144 244 1.95 8,055 NM Albuquerque N35 57.2 7 0.362 4 3 16.6 4.21 182 33 149 3.19 4,726 NV Los Vegas N36.1 68.6 5 0.368 4 4.1 17.6 4.21 137-59 196 2.42 6,384 NY New York N40.8 54 8 0.257 3 2.3 11.6 4.53 303 106 197 2.41 6,419 OR Portland N45.6 54 10 0.229 3 2.9 11.8 4.21 279 69 210 2.26 6,843 TX Dallas N36.0 55.3 7 0.322 1 2.8 15.2 4.21 279 67 212 2.24 6,945 VT Burlington N44.5 46.3 9 0.243 5 2.7 12.2 3.95 388 153 235 2.02 7,745 WA Seattle N47.5 52.1 10 0.217 4 2.8 11.4 4.21 301 91 210 2.26 6,848 WI Madison N43.1 47.3 9 0.255 5 2.9 13 3.60 354 127 227 2.09 7,473 AB Edmonton N53.3 35.9 (2.16 C) 12 0.232 5 3.5 13.2 1.23/l 646 261 385 1.23 12,973 BC Vancouver N49.0 49.4 (9.66 C) 12 0.202 5 2.6 9.6 1.23/l 383 35 348 1.36 11,684 ONT Toronto N43.7 45 ( (7.22 C) 10 0.233 5 2.5 11.2 1.23/l 486 53 433 1.10 14,636 12/10/2014 V6 Page 6