Before you view the data...
Before you view the data please consider the following: Our test house was first measured to determine the 4 warmest rooms. Then in these four rooms, we replaced the vents with Activents. When the room temperature was established the Activents closed, thus redirecting the warm air to other portions of the house. The house heated faster and the furnance turned off sooner. This resulted in energy savings and added comfort.
How big is the test house?
| Residential Volume Calculation |
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Room Description |
Area (ft2) |
Volume (ft3) |
Percentage |
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of whole |
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Dining Room |
140 |
1190 |
8.05% |
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Kitchen |
140 |
1190 |
8.05% |
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Living Room |
240 |
2040 |
13.79% |
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Family Room |
200 |
1700 |
11.49% |
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Bedroom 1 |
120 |
1020 |
6.90% |
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Bedroom 2 |
120 |
1020 |
6.90% |
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Bedroom 3 |
140 |
1190 |
8.05% |
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Bedroom 4 |
280 |
2380 |
16.09% |
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Hallways |
140 |
1190 |
8.05% |
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Hall Bathroom |
100 |
850 |
5.75% |
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Master Bath |
120 |
1020 |
6.90% |
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Total |
1740 |
14790 |
100.00% |
Where is the test house?
Campbell, CA (a suburb of San Jose)
When did the test take place?
Winter Season, outside temperature 40-42 degrees
Show me the data!
| Number of Activents installed |
4 |
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| Customer Cost per vent |
$100.00 |
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| Total Customer Cost |
$400.00 |
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| Average Heating Period w/o Activents (min.) |
13 |
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| Average Heating Period w Activents (min.) |
9 |
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| Number of heating periods per day w/o Activents |
12 |
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| Number of heating periods per day w Activents |
12 |
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| Cost per day w/o Activents |
$12.00 |
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| Cost per day w Activents |
$8.31 |
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| Savings per Heating day |
$3.69 |
30.78% |
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| Number of heating days per year |
100 |
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| Cost per year w/o Activents |
$1,200.00 |
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| Cost per year w Activents |
$831.00 |
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| Savings per year |
$369.00 |
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| Payback period (years) |
1.1 |
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Heating w/o Activent |
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| Heating Start |
Heating Stop |
Heating |
Dwell between |
| time |
time |
Period |
heating cycles |
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|
(minutes) |
(minutes) |
| 6:01 AM |
6:21 AM |
0:20 |
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0:15 |
| 6:36 AM |
6:46 AM |
0:10 |
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0:16 |
| 7:02 AM |
7:11 AM |
0:09 |
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0:19 |
| 7:30 AM |
7:40 AM |
0:10 |
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0:21 |
| 8:01 AM |
8:17 AM |
0:16 |
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Average (minutes) |
0:13 |
0:17 |
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Heating w Activent |
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| 9:17 AM |
9:25 AM |
0:08 |
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0:21 |
| 9:46 AM |
9:53 AM |
0:07 |
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0:27 |
| 10:20 AM |
10:24 AM |
0:04 |
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Average |
0:06 |
0:24 |
| Forced Air Heater Data |
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| Mfr. |
Carrier |
| Product |
58RAV095 |
| Max Amps |
10.2 |
| Max Outlet Pressure (inches W.C.) |
0.5 |
| Max Outlet Air Temperature (degrees F) |
180 |
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Carrier Data, Energy Consumption, avg |
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| Location |
Bay Area |
| Heating cost |
$1,064 |
| Cooling Cost |
$258 |
| Based upon 50,000 btu heating requ. |
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| Average fuel rate/therm |
$1.090 |
| Nominal 3 ton Air conditioner |
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| Electric Rate assumed $/kw-hr |
$0.110 |
Installing Activents will not only save you money they will add comfort to your home. |
