Tacoma Water Heaters: Plan the Drain and Owner Handoff

Trace the Condensate Route in the Proposal

The specifications address condensate drainage, walkway slip hazards and freezing conditions (PDF p. 1). Have the installer show where the water will travel from the unit to its proposed destination.

Ask whether the price includes every part of that route, including any pump, penetration or repair to finished surfaces. Identify who will explain maintenance and what happens if the drain stops working. A note saying drainage is included is less useful than a sketch that both the plumber and homeowner can follow during a later service visit.

Compare the Whole Installation Space

Page 1 defers to the manufacturer’s installation requirements and addresses duct sealing and exhaust-duct insulation when ducting is used. Those conditions belong in the proposed installation, not in an assumption that every tank can occupy the old location unchanged.

Request the model number and installation manual before deciding between locations. Ask the installer to explain access for servicing and filter removal, any duct route and the effect on nearby storage. If equipment is moved, have the bid identify the resulting plumbing, electrical and surface work. Compare those complete scopes rather than ranking units only by tank capacity.

Separate Utility Participation From Permit Approval

The document says program specifications are additional to manufacturer instructions and local codes. The current Tacoma Power page still links it, but now describes qualifying Tier 3 or Tier 4 equipment, while the older PDF names Tier 3 (PDF p. 1). Ask the utility to resolve the applicable current equipment criteria before purchase.

Confirm that the property is served by Tacoma Power and which permit authority handles the work. If seeking program assistance, obtain current requirements for the particular option you choose. This guide establishes no rebate amount, eligibility, approval or savings. Ask the installer to name who obtains permits and supplies completion records rather than leaving the responsibility implied.

Make the Demonstration Part of Completion

The second page calls for filter-cleaning instruction, maintenance explanation and delivery of the manufacturer’s operating manual. It also warns against covering safety devices with pipe insulation (PDF p. 2).

Arrange a walkthrough while the installer is still present. Have them demonstrate the controls and maintenance points for the installed model, explain normal operation and identify the service contact. Keep the manual, model and serial details, invoices and inspection records together. Ask for a correction before closing the project if a required maintenance point cannot be reached in the finished arrangement.

Sources And Local Resources

Official sources checked October 17, 2026. Confirm current requirements with the authority responsible for your property.

• Tacoma Power: Heat Pump Water Heater Program Specifications, Document 5016PDF pp. 1–2; no sequential printed page numbers. Footer states 2/2018. Supports program-versus-code distinction, condensate/duct issues, old Tier 3 wording, safety-device access and installer education/manual handoff.
• Tacoma Public Utilities: Electric Hybrid Water HeaterCurrent utility page links the older specifications and lists Tier 3 or Tier 4 equipment and Tacoma Power customer requirements. Supports checking current program/model conditions; no incentive amount, financing eligibility or projected savings is claimed.