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Wrap batt insulation around pipe loosely enough not to compress the insulation and secure with wire or tape

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The hot water pipe on this heat pump water heater has been insulated with pipe insulation.

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Mechanical Insulation Design Guide - Installation

Reference

Web resource that lays out the pre-work considerations, methods and finishes for installing mechanical insulation.

Do Water Heaters Need to Be Insulated?

Reference

Webpage describing the benefits of installing insulation on a water heater, including descriptions of different types of tank insulation.

Use a square piece of insulation, secured with heat-resistant tape, to insulate the top of your electric water heater.

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Insulate Steam Distribution and Condensate Return Lines

Reference

Fact sheet describing principles of insulating steam distribution and condensate return lines as an effective way to prevent energy loss.

Wrap the insulation around the pipe in a spiral fashion

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Tubular pipe insulation sleeves come with a precut seam

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Right – The pipes on this heat pump water heater are carefully insulated.

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Measure your water heater prior to installing an insulating blanket.

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Building America Energy Performance Brief: Insulating Hot Water Heaters

Case Study

Case study describing benefits of and steps involved with insulating a hot water heater.

Hot water heating pipes insulated with 1 inch of jacketed fiberglass

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Do-It-Yourself Savings Project: Insulate Water Heater Tank by EPA

Reference

Webpage providing a guide for homeowners to follow when installing a water heater blanket on their electric resistance water heater.

This Heat Pump Water Heater is Sitting on an Insulation Pad to Reduces Heat Losses

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Right: This heat pump water heater is installed in a garage next to the furnace where there is a lot of space for accessing the unit, and for intake and exhaust; a foam pad insulates the base; the condensate line is correctly drained and pipe insulation

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High-density fiberglass pipe insulation comes with a vapor barrier cover and self-adhesive seam

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All of the pipes are insulated on this high-efficiency 50-gallon heat pump water heater.

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Hot water recirculation loop runs through an insulated pipe under the home’s concrete slab.

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Right: This heat pump water heater is installed in a small space so the, intake air is ducted from an adjacent room; the water heater since on a pad of foam insulation and has a good drain line configuration but the waterpipes lack insulation

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Use an X-shaped cut to expose control panels when installing an insulation blanket on an electric water heater

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This wall-mounted high-efficiency condensing gas tankless water heater has PVC vent pipes and insulated water pipes

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The inlet and outlet water pipe connections are located on top of this electric water heater; note that the hot water line (on the left) has been insulated.

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This Heat Pump Water Heater has Pipe insulation installed on the hot water line (on left) and on the cold water line (on right)

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Pipe insulation helps retain heat in the pipes which provide hot water from the air-to-water heat pump for domestic hot water and space heating.

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The mechanical room in the insulated basement houses the water heating equipment, including the storage tank for the solar thermal system and the wall-hung boiler as well as the air handler for the hydro coil and high-efficiency (16 SEER) air conditioner.

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DOE ZERH HIA 2013 Case Study: Weiss Building & Development, System House, River Forest, IL

Case Study

Case study describing a 4,763 ft2 certified Passive House that achieved HERS 27 without PV through the construction of R-54 walls that use ICF plus fiberglass cavity insulation, an R-100 vented attic, extensive air sealing and flashing, triple-pane windows, ductless heat pumps, and solar hot water.

Wrap batt insulation around pipe loosely enough not to compress the insulation and secure with wire or tape

The hot water pipe on this heat pump water heater has been insulated with pipe insulation.

Mechanical Insulation Design Guide - Installation

Do Water Heaters Need to Be Insulated?

Use a square piece of insulation, secured with heat-resistant tape, to insulate the top of your electric water heater.

Insulate Steam Distribution and Condensate Return Lines

Wrap the insulation around the pipe in a spiral fashion

Tubular pipe insulation sleeves come with a precut seam

Right – The pipes on this heat pump water heater are carefully insulated.

Measure your water heater prior to installing an insulating blanket.

Building America Energy Performance Brief: Insulating Hot Water Heaters

Hot water heating pipes insulated with 1 inch of jacketed fiberglass

Do-It-Yourself Savings Project: Insulate Water Heater Tank by EPA

This Heat Pump Water Heater is Sitting on an Insulation Pad to Reduces Heat Losses

Right: This heat pump water heater is installed in a garage next to the furnace where there is a lot of space for accessing the unit, and for intake and exhaust; a foam pad insulates the base; the condensate line is correctly drained and pipe insulation

High-density fiberglass pipe insulation comes with a vapor barrier cover and self-adhesive seam

All of the pipes are insulated on this high-efficiency 50-gallon heat pump water heater.

Hot water recirculation loop runs through an insulated pipe under the home’s concrete slab.

Right: This heat pump water heater is installed in a small space so the, intake air is ducted from an adjacent room; the water heater since on a pad of foam insulation and has a good drain line configuration but the waterpipes lack insulation

Use an X-shaped cut to expose control panels when installing an insulation blanket on an electric water heater

This wall-mounted high-efficiency condensing gas tankless water heater has PVC vent pipes and insulated water pipes

The inlet and outlet water pipe connections are located on top of this electric water heater; note that the hot water line (on the left) has been insulated.

This Heat Pump Water Heater has Pipe insulation installed on the hot water line (on left) and on the cold water line (on right)

Pipe insulation helps retain heat in the pipes which provide hot water from the air-to-water heat pump for domestic hot water and space heating.

The mechanical room in the insulated basement houses the water heating equipment, including the storage tank for the solar thermal system and the wall-hung boiler as well as the air handler for the hydro coil and high-efficiency (16 SEER) air conditioner.

DOE ZERH HIA 2013 Case Study: Weiss Building & Development, System House, River Forest, IL

GreenCraft Greenspoint House Prototype

Builders Challenge High Performance Builder Spotlight: Tindall Homes, Princeton, New Jersey

DOE ZERH HIA 2017 Case Study: Thrive Home Builders, Courtyard Rows, Lone Tree, CO

Best Practices Case Study: Nelson Construction, Hamilton Way, Farmingon, CT