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Specify energy efficient water heaters (stand-by heat loss & fuel efficiency).
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Provide heat traps on cold supply to water heaters
(heat trap nipple, u-flex connector, fabricated return bend).
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Water heating equipment shall be provided with controls to allow a set point of 110° F. for dwelling units and 90° F. for other occupancies.
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Insulate hot water re-circulating piping.
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Insulate at least the first eight feet of pipe on non-circulated commercial water heaters.
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Hot water shall not be piped to ice makers / refrigerators.
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Heated residential swimming pools require pool covers if more than 20% of the heat is from non-renewable resources (solar energy is considered renewable).
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Lavatories in public facility rest rooms shall be limited to 110° F.
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New buildings are to be considered “unusually tight construction”, requiring combustion air from outside the building.
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Seal all penetrations of the building envelope.
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