Homeowner checklist

Drain-water heat recovery: saving some of a shower’s warmth

Use these steps to plan, check and keep a record of your next actions.

• List the showers used most often and their normal timing.
• Ask which shower drains can actually pass through the proposed exchanger.
• Confirm that the tested model configuration matches the plumbing proposal.
• Review savings using household use and the marginal energy price.
• Include access, restoration and required approvals in the installed quotation.

Notes & questions to follow up