Heating Solar Power
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 2 PACK Swimming Pool Solar Sun Rings Thermal Heater Cover NEW $31.99 Time Remaining: 20d 20h 1m Buy It Now for only: $31.99 |
 Aquabot Aquabot Turbo T2 Pool Cleaner $801.00 (12 Bids) Time Remaining: 52m |
 24 Round Clear Aboveground Swimming Pool Solar Cover $134.99 Time Remaining: 1h 11m |
 Rx Clear 3 Inch Stabilized 50 lbs Swimming Pool Chlorine Tablets Tabs Bucket $98.99 Time Remaining: 24d 20h 40m Buy It Now for only: $98.99 |
 18 Round Clear Aboveground Swimming Pool Solar Cover $83.99 (2 Bids) Time Remaining: 1h 11m |
 New Zodiac Nature 2 Express Cartridges for Swimming Pools W28175 $68.92 Time Remaining: 20d 21h 13m Buy It Now for only: $68.92 |
 24 Round Above Ground Swimming Pool Solar Blanket Cover $109.99 Time Remaining: 1h 10m |
 15 Round Aboveground Swimming Pool Solar Blanket Cover $53.95 Time Remaining: 1h 10m |
 MIDWEST SOLAR POOL COVER HEAVY HEATING THERMOTEX BLANKET 18 X 36 3 YR WARRANTY $80.70 Time Remaining: 24d 1h 24m Buy It Now for only: $80.70 |
 18 Round Solar Pool Cover Above Ground Solar Blanket $69.99 Time Remaining: 1h 10m |
 Natural Chemistry Swimming Pool PHOSfree Phos Free 3 Liter Chemical $22.99 Time Remaining: 14d 21h 9m Buy It Now for only: $22.99 |
 4x20 Swimming Pool Solar Panel Heater with Diverter Kit for Above Grd Pools $188.50 (10 Bids) Time Remaining: 3h 6m |
 Motion Sensor Stainless Steel Solar Powered Path Light $6.67 Time Remaining: 1h 54m |
 NEW SOLAR SUN RING POOL HEATER THERMAL COVER 21000 BTU FOR POOL SPA HEATING $17.79 Time Remaining: 24d 23h 35m Buy It Now for only: $17.79 |
 Four Seasons Courtyard Solar Mosaic Dragonfly Stake Light 121652 $9.00 (1 Bid) Time Remaining: 2h 40m |
 SOLAR SUN RING POOL SPA HEATER 21000 BTU COVER HEATING $17.80 Time Remaining: 3d 21h 59m Buy It Now for only: $17.80 |
 2PACK HANGING SOLAR POWER LANTERN LAMP LIGHT W 5 LED LIGHTS HUMMING BIRD DESIGN $24.90 Time Remaining: 4h 40m Buy It Now for only: $27.39 |
 New Outdoor Garden 3 LED Solar Spot Flood Landscape LED Lights $9.99 (1 Bid) Time Remaining: 2h 52m |
 Drytec Swimming Pool Shock in 6 12 24 48 packs $48.00 Time Remaining: 22h 11m Buy It Now for only: $48.00 |
 GAME SolarPRO AquaQuik Dual Solar Heater Swimming Pool Coils Bypass Kit Combo $268.99 Time Remaining: 1d 4h 31m Buy It Now for only: $296.95 |
 Rx Clear 3 Inch Sanitizer Chlorine Tablets 50 lbs $109.99 Time Remaining: 17d 34m Buy It Now for only: $109.99 |
 Winter hardy Prickly Prickley Pear Cactus 11 pads yellow flower cacti $6.25 Time Remaining: 2h 31m |
 Winter hardy Prickly Prickley Pear Cactus 20 pads yellow flower cacti $9.98 Time Remaining: 2h 30m |
 24 Round 8 Mil Above Ground Solar Blanket Pool Cover $59.00 Time Remaining: 24d 20h 32m Buy It Now for only: $59.00 |
 Winter hardy Prickly Prickley Pear Cactus 12 pads yellow flowor cacti $6.50 Time Remaining: 2h 30m |
 4 PACK NEW SOLAR SUN RING POOL HEATER THERMAL COVER $66.99 Time Remaining: 3d 21h 58m Buy It Now for only: $66.99 |
 SOLAR OVEN SUN POWERED COOKER STOVE PORTABLE GRILL SALE WATER HEATER NO GAS BBQ $177.00 (2 Bids) Time Remaining: 9h 36m |
 Winter hardy Prickly Prickley Pear Cactus 10 pads yellow flower cacti $5.98 Time Remaining: 2h 31m |
 24 Round Overlap Swirl Bottom Pool Liner 20GA $152.99 Time Remaining: 12d 18h 49m Buy It Now for only: $152.99 |
 GAME SolarPRO AquaQuik Dual Solar Heater Swimming Pool Coils Bypass Kit Combo $268.99 Time Remaining: 2d 3h 8m Buy It Now for only: $296.95 |
 INTEX 15 Easy Set Frame Swimming Pool Solar Cover $34.95 Time Remaining: 28d 49m Buy It Now for only: $34.95 |
 Red Blue OJ Hydroponic LED Panel Grow Light 110 225 V $35.99 (1 Bid) Time Remaining: 6h 49m |
 10 x Red Hydroponic LED Panel Grow Light 110 V New $319.00 Time Remaining: 6h 52m |
 24 Round Swimming Pool Solar Blanket Cover 8 Mil $59.99 Time Remaining: 17d 18h 20m Buy It Now for only: $59.99 |
 Solar Patio Umbrella With 32 LED Lights 9 Tan Market Umbrella W Tilt Outdoor $109.95 Time Remaining: 1d 23h 43m Buy It Now for only: $124.95 |
 1 Zodiac Nature 2 W20750 Spa Mineral Sanitizer Cartridge $17.75 Time Remaining: 5d 16h 26m Buy It Now for only: $17.75 |
 4pcs 3 LED Solar Powered Spotlight Landscape Spot Light LED Outdoor Garden Lamp $41.99 Time Remaining: 12h 3m |
 2PACK ANTIQUE WHITE HANGING SOLAR LANTERN LIGHT W 4 AMBER GLOW LED CANDLE LIGHTS $29.99 Time Remaining: 1d 13h 59m Buy It Now for only: $32.99 |
 Zodiac Nature 2 A 30K Gallon AboveGround Replacement Cartridge W28165 A30 $73.46 Time Remaining: 24d 18h 22m Buy It Now for only: $73.46 |
 6 Pcs White E 26 Par38 par 38 6500 K LED Lamp 12 0 240V 16 W Watt Fit E 26 E 27 $152.00 Time Remaining: 6h 55m |
 Confer 6000B Deluxe Heavy Duty Resin In Pool Aboveground Swimming Pool Ladder $107.46 Time Remaining: 21d 21h 32m Buy It Now for only: $107.46 |
 GAME SolarPRO AquaQuik Dual Solar Heater Swimming Pool Coils Bypass Kit Combo $268.99 Time Remaining: 4d 5h 6m Buy It Now for only: $296.95 |
 2PACK HANGING SOLAR POWER LANTERN LAMP LIGHT W 5 LED LIGHTS HUMMING BIRD DESIGN $24.90 Time Remaining: 1d 19h 28m Buy It Now for only: $27.59 |
 MIDWEST SOLAR POOL COVER HEAVY HEATING THERMOTEX BLANKET 20 X 40 3 YR WARRANTY $101.95 Time Remaining: 27d 40m Buy It Now for only: $101.95 |
 Birds Nest Solar Lamp $50.00 Time Remaining: 6h 29m Buy It Now for only: $55.00 |
 Inground Swimming Pool Solar Reel Attachment Straps Buckles Kit HV 7010 $21.99 Time Remaining: 26d 17h 23m Buy It Now for only: $21.99 |
 Solar Patio Umbrella With 32 LED Lights 9 Tan Market Umbrella W Tilt Outdoor $109.95 Time Remaining: 2d 23h 40m Buy It Now for only: $124.95 |
 High Efficiency Low Current Brushless Water Pump Circulation Solar Submergible $40.00 Time Remaining: 2d 17h 47m Buy It Now for only: $50.00 |
 Natural Chemistry Swimming Pool Perfect + Phos Free Phosfree 3 Liter Chemical 3L $37.99 Time Remaining: 14d 19h 48m Buy It Now for only: $37.99 |
 NEW INTEX 18 Easy Set Frame Swimming Pool Solar Cover $41.99 Time Remaining: 3d 4h 6m Buy It Now for only: $47.95 |
 18 Round 12 Mil Clear Solar Pool Cover $57.99 Time Remaining: 9d 22h 51m Buy It Now for only: $57.99 |
 BIRDS NEST SOLAR BIRD FEEDER FREE SHIP $49.99 Time Remaining: 2d 3h 18m |
 18x30 Insulated Inground Swimming Pool Kit No 10 1 $8,775.00 Time Remaining: 1d 13h 40m Buy It Now for only: $9,655.00 |
 12 Pack Pool Frog Chlorine Bac Pac For Mineral System $174.00 Time Remaining: 10d 17h 17m Buy It Now for only: $174.00 |
 1 PC Outdoor Garden 3 LED Solar Spot Flood Landscape Light led spotlight lamp $4.55 (8 Bids) Time Remaining: 5h 37m |
 Natural Chemistry Pool PHOSfree Phos Free 3 Liter $23.69 Time Remaining: 12d 21h Buy It Now for only: $23.69 |
 1 PC Outdoor Garden 3 LED Solar Spot Flood Landscape Light led spotlight lamp $3.52 (5 Bids) Time Remaining: 3h 37m |
 Red Hydroponic LED Panel Grow Light 110 225 V 16 Watt $35.99 Time Remaining: 1d 6h 45m |
 15 Round 8 Mil Blue Solar Pool Cover $30.99 Time Remaining: 9d 22h 47m Buy It Now for only: $30.99 |
 Red Blue Orange Hydroponic LED Panel Grow Light 110 225 V $105.00 Time Remaining: 1d 6h 46m |
 4 PACK Swimming Pool Solar Sun Rings Thermal Heater Cover NEW $65.99 Time Remaining: 24d 19h 39m Buy It Now for only: $65.99 |
 1 PC Outdoor Garden 3 LED Solar Spot Flood Landscape Light led spotlight lamp $2.25 (4 Bids) Time Remaining: 7h 37m |
 2PK CORDLESS SOLAR POWER COLOR CHANGING MUSHROOM LED LIGHTS UNIQUE GARDEN LIGHT $24.97 Time Remaining: 3d 15h 5m Buy It Now for only: $27.59 |
 7 PACK NEW SOLAR SUN RING POOL HEATER THERMAL COVER $126.99 Time Remaining: 3d 21h 58m Buy It Now for only: $126.99 |
 1 PC Outdoor Garden 3 LED Solar Spot Flood Landscape Light led spotlight lamp $6.50 (8 Bids) Time Remaining: 2h 21m |
 15 Round Aboveground Swimming Pool Solar Blanket Cover Tarp 8 Mil $31.00 Time Remaining: 16d 16h 55m Buy It Now for only: $31.00 |
 NEW INTEX 18 Easy Set Frame Swimming Pool Solar Cover $41.99 Time Remaining: 4d 1h 48m Buy It Now for only: $47.95 |
 New Outdoor Garden 3 LED Solar Spot Flood Landscape LED Lights $9.99 Time Remaining: 2d 2h 51m |
 3 Pack Pool Frog Chlorine Bac Pac For Mineral System $57.00 Time Remaining: 9d 23h 11m Buy It Now for only: $57.00 |
 2PACK HANGING SOLAR POWER LANTERN LAMP LIGHT W 5 LED LIGHTS HUMMING BIRD DESIGN $24.99 Time Remaining: 4d 4h 52m Buy It Now for only: $27.49 |
 9 PACK NEW SOLAR SUN RING POOL HEATER THERMAL COVER $154.99 Time Remaining: 3d 21h 58m Buy It Now for only: $154.99 |
 8FT X 10FT HEAVY DUTY REVERSIBLE BLUE SILVER 8X10 TARP W GROMMETS 110GSM WT $9.99 Time Remaining: 4d 21h 59m Buy It Now for only: $10.99 |
 GAME SolarPRO Bypass Kit for Multiple Swimming Pool Heaters 4555 $58.99 Time Remaining: 4d 2h 1m Buy It Now for only: $65.95 |
 13 PACK NEW SOLAR SUN RING POOL HEATER THERMAL COVER $229.99 Time Remaining: 3d 21h 57m Buy It Now for only: $229.99 |
 GAME SolarPRO AquaQuik Dual Solar Heater Swimming Pool Coils Bypass Kit Combo $278.99 Time Remaining: 6d 4h 24m Buy It Now for only: $307.95 |
 Zodiac Nature 2 G Mineral Sanitizer Cartridge 25k Gal $73.99 Time Remaining: 4d 15h 54m Buy It Now for only: $73.99 |
 2PK CORDLESS SOLAR POWER COLOR CHANGING MUSHROOM LED LIGHTS UNIQUE GARDEN LIGHT $24.98 Time Remaining: 4d 4h 52m Buy It Now for only: $27.48 |
 2 Pk FLICKERING Tiki Torch Solar Landscape Light Amber LEDs FAST SHIPPING $24.88 Time Remaining: 4d 23h 19m |
 Natural Chemistry Pool Perfect + Phos Free 2 x 3 Liter $69.98 Time Remaining: 12d 21h Buy It Now for only: $69.98 |
 New Outdoor Garden 3 LED Solar Spot Flood Landscape LED Lights $9.99 Time Remaining: 19h 36m |
 Inground In line Automatic Pool Chlorinator Feeder $34.99 Time Remaining: 14d 43m Buy It Now for only: $34.99 |
 2 PACK Solar Wall Mounted Lamp Light Outdoor Spot Floodlight FAST SHIPPING $24.88 (2 Bids) Time Remaining: 4d 23h 8m |
 SOLAR OVEN SUN POWERED COOKER STOVE PORTABLE GRILL SALE WATER HEATER NO GAS BBQ $177.00 (1 Bid) Time Remaining: 5d 9h 36m |
 Confer Step 1 Aboveground In Pool Swimming Pool Steps Entry System Blue $181.41 Time Remaining: 28d 18h 12m Buy It Now for only: $181.41 |
 White Par38 par 38 6500 K LED Lamp 120 240V 8 W Watt $26.00 Time Remaining: 3d 6h 45m |
How can I heat a 8ft x 4ft x 2ft cold frame using solar power?
The cold frame is connected to the house and contains cacti, which need to be kept at about 6C. I am struggling to keep the cacti in suitable conditions and may lose them in a hard freeze.
Put the cold frame below ground level (grade) with the glass or window top is facing south. Preferably on the south side of a building for protection from the north wind. Also, unobstructed path from east to west to receive maximum sunshine as it passes over head throughout the day. This should supply sufficient solar heat during daylight hours in the hardest of freezes. Before sunset cover glass top with what ever you have. Blanket, tarp, cardboard, even hay or straw, to hold the heat in for the night. Make a dry run with no plants inside first and check temp. with a thermometer. A cheap large round garden store type and leave it in the cold frame for quick reference any time. My bet is you'll need to worry more about over heating your plant than getting a freeze on them. In that case you simply prop open the top a bit until tun temp. is OK! Good luck.
