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A premade gasket seals out air leaks around the water line.
A push button operates the on-demand hot water circulation pump in this master bathroom.
Air seal around all plumbing and piping installed through walls, ceilings, and flooring to keep conditioned air from leaking into unconditioned space.
All of the pipes are insulated on this high-efficiency 50-gallon heat pump water heater.
Foam holes for plumbing in the top plate, sill plate, or subfloor
Gaskets provide air sealing around the plumbing fixtures.
Install a gasket around the plumbing vent stack in the exterior top plate
Install WaterSense® labeled showerheads which can reduce water use in the shower by 20 percent.
Integrated collector storage (ICS) on roof
Integrated collector storage (ICS) passive solar hot water system
Peel and stick flashing and flashing tape seal a plumbing pipe that penetrates an exterior wall.
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.
Plumbing penetrations through the below slab insulation are sealed with tape and spray foam.
Right – Neatly cut hole has been properly sealed with foam
Right – Neatly cut hole has been properly sealed with foam
Right – Neatly cut holes have been properly sealed with caulk and foam
Right – Neatly cut holes have been properly sealed with foam
Seal plumbing holes in rim joist with caulk
Seal plumbing penetrations in exterior walls with caulk or a gasket
Spray foam insulation insulates and air seals around plumbing pipes and top plates in the attic.
The geothermal heat pump provides hot water for radiant floor heating, domestic hot water, and the air handler for space conditioning upstairs.
The hot water recirculation pump is hidden behind the water heater in a closet.
The sump pump is sealed to the subslab vapor barrier with sealing tape to prevent soil gas from leaking around the sump bucket.
The very high efficiency (4.7 COP) ground-source heat pump provides hot water to a tank for radiant floor heat and domestic hot water.
Thermosyphon solar hot water heater (commercial application).
This home is piped with an insulated hot water recirculation loop that speeds hot water to each fixture while helping to reduce water waste.
This home’s domestic hot water is provided by three systems: solar water heating panels, a heat pump water heater, and an air-to-water heat pump, which also provides hot water to a fan coil.
This utility room houses a high-efficiency gas boiler to provide hot water for the radiant floor heating system and faucets. It also has a central air source heat pump and an energy recovery ventilator.
Use sheet goods to seal holes around drain pipes under the tub
Wall-mounted gas tankless water heater
Wrong – Fibrous insulation is not an air barrier and cannot be used for sealing holes
Wrong – Hole has not been air sealed
Wrong – Holes have been cut larger than needed, making it difficult to seal
Wrong – Holes have been cut larger than needed, making it difficult to seal
Wrong – Plumbing not air sealed at stud