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2024 International Plumbing Code - Residential

Chapter 5Water Heaters

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Question 1 1.

In a combination potable water heating and space heating system, where water for space heating is required at temperatures exceeding 140°F, which standard must the required temperature-actuated mixing valve comply with?

Question 2 2.

What is the required minimum nominal iron pipe size for the inlet of a drain valve installed on a tank-type water heater?

Question 3 3.

For domestic uses, what is the maximum allowable temperature for water delivered from tankless water heaters?

Question 4 4.

Water heaters that are part of a potable water distribution system must have a weighted average lead content of no more than what percentage?

Question 5 5.

A fuel-fired water heater is prohibited from being installed in which of the following locations?

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