The lights heat the room well if you use the sodium growlights, but initial turn on is not good if the roots are very cold, they dont need to be that warm though, just at a temperture they can work, and once watrm indoors they generaly wont drop much with the heat that has buit up in the day, 88F root temperature is around the perfect temperature for the maximum growth, i turn the heater mat off in the night to simulate outdoor temperature drop as i turn the lights off, but most of the day the heater is off, just a short time in the morning to warm back up before i switch the sodium lights back on to control the temperature of the roots ,i have a thermostat heater mat,3 meters by 2 meters 500w power, set to heat to 88 then let cool a bit , sort of keeps it at 80 ish degrees F , doesnt use much power as its off most of the time once its warmed up the pots in the morning, you can get one pot size heatersm these are better as they waste less power, i use a giant mat for a few plants and also sometimes trays of water on the mats as well to humidify the room if its a bit dry even with the fountians

Sorry, I get so much to reply to I don't usually get back to these posts. You need to e-mail me because I may never see your replies & questions. If my memory is correct, around 35 years ago occassionally the compressors had higher BTUH ratings than the condensing units. Laxer49 I just checked your page & my birthday is on Dec 8th, too, I will be 73. Those 10-SEER condensers' used to do real well. If the E-Coil has a leak it should be replaced anyway. Laxer49, If it were me, I would put a New half ton larger BTUH rated Coil in there with a TXV refrigerant control. If you can get a real good deal on a new 10-SEER with that combination & the correct tightly sealed ducts & airflow it should cool okay in the hottest weather. If you want the most cost-effective payback I would do all I could to reduce the radiant & other heat gain as the insulation will also reduce the heating bills. The Installation is the most important thing, it has to be done right! Read & learn allyou can. Funkeruski, I suppose they replaced the evaporator with a matching TXV controlled coil? Everything has to be performed just right & even then if it is real hot & the indoor load is also heavy it may not equal the old unit which would have a larger BTUH capacity compressor on that 4-ton condenser. Those high SEER tests are performed under rather light load conditions. The SEER of a system is determined by multiplying the steady state energy efficiency ratio (EER) measured at conditions of 82°F Outdoor Temperature, 80°F Dry Bulb and 67°F Wet Bulb (near 50%RH) indoor entering air temperature by the Part Load Factor (PLF) of the system. (The PLF is supplied by the government.) IMO, they ought to be tested at 95 or 100-F outdoor temperature. Which SEER do you think will perform better at 100-F plus ambient temperatures, the one with the larger capacity compressor or the smaller one? You could slow the blower CFM down to keep the suction pressure & E-Coil temp somewhat lower, but that also drops sensible capacity some. At 82-F outdoors, the 15 should do real well against the 10. Just my viewpoint. udarrell _ 2007 Here is a link that might be useful: udarrell.com

I lived in FL for 25 years and would estimate that 50% or more of the pool decks, which are usually in full sun all year and under constant assault by chlorine, torrents of rain, and power washing (for algea buildup)have this surface. The conditions are very extreme. It looks wonderful when new and shiny. Over time, the surface can become dull and individual pebbles loosen without resealing. Most people seem to get at least ten years out of theirs with no attention.

Well in fact, we do have an "orangerie", which is generally another name for a conservatory, as I learned from the British firm that built ours. However, it is open on one side to our indoor pool. The indoor pool air is kept dry through the use of an enormous piece of eqp called a Dectron. It is the reason no one ever feels any humidity when they come into our house, despite the indoor pool. But, it makes it very hard to grow plants in orangerie/conservatory/greenhouse. We have a disco ball in there and hula hoops instead, LOL. It's a great place for the kids to play loud music that we can't hear!