Insulating your electric water heater is a simple and affordable approach to increase energy efficiency and reduce your monthly energy costs, much like insulating your walls or roof. Check whether the insulation in any older water heaters has an R-value of at least 24. Touch the tank to determine the R-value if you’re unsure. If your electric water heater seems warm to the touch, think about insulating it.
Otherwise, think about insulating your water heater. Water heater insulation should pay for itself in approximately a year and can cut standby heat losses by 25%–45% while saving you 7%–16% on water heating expenditures. Pre-cut blankets and coats are readily available for under $20. Most specialists concur that a gas water heater loses heat through the vent. A blanket is, therefore, useless with these kinds of heaters.
Why do hot water tanks need insulation?
The idea that something as easy and inexpensive as placing an insulating blanket around your hot water tank might save energy costs for years may seem too fantastic. However, a percentage of the heat needed to heat your water is constantly lost to the outdoors. Therefore insulation on a water heater is effective. Standby heat loss is the name of this phenomenon.
Your water heater will remain on standby whenever hot water is not used. When on standby, the heater will regularly reheat the water in the tank so it is always hot when needed. The tank transmits a portion of this heat and subsequently convected to the air. Because larger tanks have a greater surface area in contact with the air, standby loss will be more noticeable the more significant your tank is.
How much does insulate water heater cost?
Hot water tank insulation jackets may be purchased for as little as £15 and may start to pay for themselves after a few months. Prices for pipe lagging vary based on the size of the pipes and how much you need for your central heating system, with costs ranging from £5 to £7 per meter.
Considering how much you save on energy costs, these little expenditures are more than justifiable.
Is insulating your water heater the best option?
The best action for insulating a water heater depends on several factors. The location of your water heater should be taken into account initially. You could not save much money by insulating your water heater if it is in a hot inside closet or another area of your house. Insulation benefits water heaters located outside, in garages, or in frigid basements considerably more.
The materials and designs of water heaters from ten years ago were less advanced. Still, most modern water heaters don’t need any additional insulation. Try feeling outside your water heater tank to see whether insulation might be beneficial. If the tank feels warm to the touch, heat escapes outside, and more insulation can be cost-effective. Cool tanks are already well insulated.
What material is used for insulation?
Modern hot water cylinders are often properly insulated since they are equipped with hardened foam. On the other hand, older cylinders might benefit from insulation to stop heat loss, usually about 80mm. This insulation takes the shape of a hot water cylinder jack, frequently constructed of recycled fiberglass covered with PVC.
The best materials for pipe insulation for electric water heaters are polythene or neoprene foam.
How is a water heater insulating blanket applied?
Insulating blankets are sold in multiple sizes to accommodate various water heaters. To discover the best fit at your neighborhood hardware shop, look for a label on the side of your water heater tank that lists the size in gallons. A loose-fitting blanket won’t adequately insulate your tank.
If your water heater uses gas, turn the gas valve to the pilot and turn off the electricity. Replace the blanket and fasten it with electrical tape after removing it and using scissors to cut along your markings. Make sure you don’t cover the top of a gas heater with a blanket if you have one.
Turn the gas and electricity back on after insulating your water heater, then try decreasing the thermostat by 10 degrees. Because of the insulation, you may run your water heater at a lower temperature while still maintaining a comfortable temperature for your water.
Install a water heater
A water heater is an effective solution to keep your tanks from freezing up, even if it is more expensive than merely wrapping your tank in insulation. Freezing climes could need many heating components or a mix of insulation and submersible heaters. It’s a rather basic concept, and installation is not too expensive.
Another choice is to purchase an electric heating blanket, which combines insulation’s zero-energy advantages with a submersible heating element’s direct heat. These practical blankets heat from an electrical source and wrap around the tank like a jacket.
They provide temperature controls to accurately manage temperatures in response to weather conditions and are available in various sizes and designs. Although they are more costly, need more maintenance, and require power to operate, they are an efficient solution to stop your tanks from freezing.
Keep the jacket or blanket away from the top flue and the bottom drain. See if anything is preventing the airflow from reaching the burner. The top of a gas water heater tank shouldn’t be insulated since it might cause a fire and interfere with the draught diverter. Also, leave the thermostat exposed.
· Is wrapping a water heater safe?
You mustn’t cover the flame with the blanket or place any portion of it there. The exhaust requires a route to depart, so ensure you never cover the top of the gas water heater.
· Are new hot water tanks insulated enough?
Modern hot water cylinders frequently come with insulation built-in in hardened foam, typically sufficient to keep them well-insulated. Older tanks, however, could require more insulation.
· Do I require a jacket for my water tank?
If your insulation is too thin, install a tank jacket (or another garment) to bring your insulation up to the suggested 80mm.