How hot do I need to keep it in there at night? All you really have to do is keep it above 38 but I set my thermostat for 45. How cool should it be in the day? How do I know when to open the vents? Try to keep it below 80 max and shoot for 60-65. Should I put a fan on them? How long should the fan be running? Yes, 8-10 hours a day. How about jugs of water to hold heat? They help but not much unless you can cover the north wall of the GH with them so don't count on them. Keep in mind that the heat will rise and so the higher shelves will be warmer than the bottom ones. The fan will help circulate the heat but you still need to make note of the difference between the temp at different levels and place the plants accordingly. Good luck! ;) Dave

Hi wantoretire_did! Thank you so much for the suggestions! I've been meaning to get to HD and my local ACE for a walk-about. I'm going to go when I have a couple of hours and don't have to rush around. Just walk around with my trusty legal pad and take notes. Lighting is a big part of what I want to look at. I really appreciate your suggestion because that didn't even cross my mind! I'm pretty sure most, if not all, of the fixtures in my house are original, and at 37, they need to retire, lol! I just can't see paying some guy from CL for the rest of my life to come replace bulbs and wash the fixtures! I have electric burners, but I can see how that could easily happen with gas. I'm pretty much leaning against the ceiling fans now; cathyyg made very good points, and these seven ft. ceilings feel so low already, even at my height, that I fear the fans would just draw attention to them. We've got a good system with the fans now, and I don't think ceiling fans are as necessary as I thought they were when I first posted this. Yes! Taking lots of pictures! :-) I hope all is well with you and yours!

Types for Outdoor Heaters- https://www.heating-air-conditioning.org/ Outdoor heaters typically use one of four main types of fuel sources — Natural Gas, Propane, Electric & Wood — each with their own set of pros and cons. Let’s take a closer look at each of the fuel types, and help narrow down which one is best for you. 1. Propane Propane heaters are pretty easy to add to your patio or yard. They don’t usually require professional installation, so it’s just a matter of putting them together, attaching the gas tank, and turning them on. Unfortunately, they cost more than natural gas outdoor heaters in the long run and you should plan on replacing the gas tank every so often if you go with this option, but the startup convenience appeals to many users. And when the propane tank does run out, it’s incredibly easy to replace the tank with a new one. Benefits: Heat up fast. No installation required. Portable; Can be moved to where you need the heat the most. To Keep in Mind: Propane costs more than natural gas. Gas tanks will need to be replaced periodically. Shouldn’t be used in a covered or enclosed space. 2. Natural Gas Natural gas outdoor heaters will usually require professional installation, since you’ll need them to be hooked up to your gas line. Because of this, they can cost quite a bit more upfront than other types of outdoor heaters — both for the heater itself and the installation costs. However, they’re the cheapest to use once you have them installed and they’re incredibly easy to maintain. Benefits: Cheap to use. Easy to maintain. To Keep in Mind: Expensive to buy and install. Can’t use in a covered or enclosed space. May be difficult to move due to natural gas line. Outdoor heaters typically use one of four main types of fuel sources — Natural Gas, Propane, Electric & Wood — each with their own set of pros and cons. Let’s take a closer look at each of the fuel types, and help narrow down which one is best for you. 1. Propane Propane heaters are pretty easy to add to your patio or yard. They don’t usually require professional installation, so it’s just a matter of putting them together, attaching the gas tank, and turning them on. Unfortunately, they cost more than natural gas outdoor heaters in the long run and you should plan on replacing the gas tank every so often if you go with this option, but the startup convenience appeals to many users. And when the propane tank does run out, it’s incredibly easy to replace the tank with a new one. Benefits: Heat up fast. No installation required. Portable; Can be moved to where you need the heat the most. To Keep in Mind: Propane costs more than natural gas. Gas tanks will need to be replaced periodically. Shouldn’t be used in a covered or enclosed space.

Do not put heat under the shower floor: 1) Electric mats can develop defects and the presence of water can lead to a shock hazard. If you think this is far-fetched, there is more than one thread in these forums about such problems. 2) Hydronic heat (warm water circulated in tubes) does not present a shock hazard, but it is also of little use in a shower. Radiant heat only makes the floor warm enough to keep the ambient air at a decent room temperature...as soon as you turn on the shower, the initial blast of water overwhelms any contribution of warmth from the floor in a second or two.