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ASHRAE Advances Proposal to Prohibit Listed Gas-Fired Vent-Free Heaters

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Despite efforts to dissuade ASHRAE from doing so, earlier this month it approved for public review what could become “addendum j” to Standard 62.2 on indoor air quality. Addendum j explicitly prohibits all permanently mounted gas-fired unvented heaters listed to the unvented room heater standard, ANSI Z21.11.2, ...

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