This seemed like a great value for what looked like a good R value to add to a less effiicient water heater tank. Ours is the State Select model, with a rather low R value and poor Energy Efficiency ratings. Ours is natural gas, so I researched and saw that I needed to be careful to allow adequate aeration around the pipings etc. Fortunately ours is vented via ducts that you can see (see crinkly aluminum flue exiting top). Our tank measured a bit over 75" diameter via tape measure, roughly measured. So we got this 3" x 60" x 90" R10 one to ensure good coverage with some overlap. This one fit the bill for our tank perfectly. It came with 2 long pieces of super wide, sticky aluminum tape. I used gaffer's tape to secure onto the tank (so that later on I could remove it from tank easier than duct tape if I had to), then used the included aluminum tape to secure the main seams. I had to cut around my water exhaust spigot at bottom, the high-pressure vent and pvc pipe from top, and of course the natural gas manifold with controls near center bottom. I am a rank amateur, so as you can see I did a really crappily messy job of it, but with my aging back, and IDGAF attitude, this was as much effort I was willing to put into it. I had some extra material after I cut around my bottom controls to add some extra insulation to the top of the tank as you can see, while being careful to avoid interfering with any of the pipes entering and exiting up top.
I hope to add to this review in about 1 year from today, to give you some idea of if any monetary savings could be gleaned from our natural gas or water heating bill over a year of use compared to our data from the previous year when our tank went naked. See you then Amazon.
| Manufacturer | Thermwell Products Co., Inc |
|---|---|
| Part Number | SP60 |
| Item Weight | 7 pounds |
| Product Dimensions | 90 x 3 x 60 inches |
| Item model number | SP60 |
| Is Discontinued By Manufacturer | No |
| Size | 3” Thick x 60” x 90”, R10 |
| Style | 3” Thick x 60” x 90”, R10 |
| Installation Method | 1 |
| Item Package Quantity | 1 |
| Included Components | Rough Plumbing; Parts and Repair;replacement-water-heater-covers |
| Batteries Included? | No |
| Batteries Required? | No |
