Re: [CH] Cardboard Box heater for seed Germination
John Cerise (jkcerise@rof.net)
Sun, 07 Mar 2004 10:13:28 -0700
At 06:09 PM 3/6/2004, you wrote:
>Step 5. If the box is over about 85 deg F ( 30C for you folks above the
>border) You can do one of about three things
>
>A. Purchase a temp sender and interface for your computer which can lower
>the volatage to the bulb
>
>B, Purchase a light dimmer switch and lower the voltage to the bulb
>or
>C. You can cut a small hole in the side of the box and let some of the
>heat escape
>
>See above photo
>
>Step 6. You might need to vary the amount of opening for the correct
>amount of heat escapment
>Again there are a couple of choices.
>
>A. You can get a temperature sensor and a servo to vary the degree of
>opening that you need
>or
>B. you can use my alternate cheap method
And remember, fellow Heads, that there ARE 25 watt bulbs out there, or two
7 Watt bulbs or ???, for your smaller gardens!!
Cheers,
John