Mobile Home Water Heater Maintenance and Repair Services in WA, OR, Northern & Southern CA
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Does Your Mobile Home Water Heater Need Repair or Replacement?
♦ No hot water!
♦ Hot water lasts only 5-10 minutes
♦ Fluctuating water temperatures
♦ Hot water is scalding
♦ Hot water is colored or rusty
♦ Hot water contains sediments
♦ Hot water smells bad
♦ Your hot water bill is abnormally high
♦ Makes strange noises
♦ You see water pooled at the bottom of the unit
♦ You see water leaking out
♦ Error codes or warning lights
♦ Reset hot water temperature, to no effect
♦ You hear odd noises
♦ Pilot light does not stay lit, or keeps on popping the breaker.
Replacing a water heater in a mobile home comes with unique challenges and considerations that differ from a standard residential home installation. Here’s what makes it different:
Mobile Homes require a HUD Compliant water heater (The Department of Housing and Urban Development). These water heaters contain a sealed combustion chamber preventing gas leaks, are designed for confined spaces, and meet specific venting requirements. Installing a regular residential water heater in a mobile home is illegal in most jurisdictions. Still thinking of installing a regular residential water heater in a mobile home, and not letting the government know about it? If that rogue water heater leads to an accident, the insurance company may not pay out.
Special Venting Requirements for Gas Water Heaters. Mobile homes have direct vent or sealed combustion venting, different from standard homes. This prevents carbon monoxide from leaking into the living space. Going with a regular gas water heater with a standard atmospheric vent water heater won’t meet code in a mobile home. Be sure to use a gas water heater intended for mobile homes containing a direct vent (through the side wall) or sealed combustion venting.
Smaller Space & Clearance Issues. Mobile homes have smaller utility closets or compartments for water heaters, limiting the size of the tank. Standard water heaters may not fit. The clearance around the water heater for heat dissipation may not meet code.
Access Panel Requirements. In mobile homes, water heaters are enclosed in a small, sealed closet with an access panel or louvered door. This prevents gas leaks from entering the home. Making sure the mobile home water heater’s combustion area stays sealed is critical.
Different Earthquake Requirements. Mobile homes are intended to shift and flex more than traditional homes. The water heater earthquaking requirements for seismic strapping are different, as well as ensuring the water heater is securely mounted to the floor.
Wiring for Electric Water Heaters. Mobile homes often have a 30-amp breaker and smaller gauge wiring (we’ve seen mobile homes as low as 20-25 map breakers). Standard electric water heaters require higher amperage, which overload mobile home breakers. A mobile home rated electric water heater designed for low-power draw is required.
Drain Pan Requirement. Mobile home water heaters are usually installed in closets with little floor drainage, where a leak can cause significant damage to the subfloor. Drain pans are needed, with a pipe routed to the outside of the home.
Relocation Restrictions. Some folks want to use the occasion of replacing a new water heater as a reason for a minor renovation. However, if the old water heater was installed in a tight closet or hallway, moving it may violate code. Moving a mobile home water heater to another area, such as bedroom or living room, causes venting and clearance violations.
Permits & Inspections. A water tank replacement requires an inspection not through the city or county, but at the state level, through the Department of Labor and Industry. This is because of the strict HUD safety requirements. No surprise, navigating state level bureaucracy is its own specialty. Thinking of skipping? Then you may be voiding your insurance coverage.
Weight Consideration for Subfloors. Mobile home subfloors are typically made of particleboard, plywood, or OSB, which may sag under heavy loads. Installing a larger or heavier water heater opens the location to floor damage.
Gas Line Connections For Gas Heaters. Mobile homes typically use smaller gas lines with lower pressure. Standard water heaters require more gas volume than the mobile home supply line can deliver. Without the right sizing, the water never reaches hot.
A mobile home water tank replacement is significantly different from a standard home. If not done right, the consequences can be critical. If not sure, then call us now. It costs nothing to have a conversation with us, and we may be able to help you.
why call us?
We know you have choices, which means we need to work extra hard to earn your business.
- Fixed pricing. The price we quote is what we charge.
- Background checks. Our employees goes through both drug tests and criminal background checks.
- Customer service excellence. If we’re not doing five-star service, we’re doing something wrong.
- No extra charges for longer repairs.
- Trained technicians by the manufacturers.
brands we work WITH
We service and sell these tankless hot water heater brands:
- AO Smith
- Bradford White
- Navien
- Noritz
- Rheem
- Rinnai
Why Hire Fast Water Heater
Clear Answers: We’ll let you know the benefits and costs of repairing or replacing your tankless water heater, so that you can make an informed decision.
Experience with Tankless Systems: We’ve installed thousands of tankless water heaters.
Manufacturer Certifications: We are certified by the vendors (e.g., Navien, Rinnai, Noritz) to service their units.
Licensing, Insurance, and Bonding: We hit all three. We are licensed by the state, carry insurance, and are bonded to complete the job.
Local: When you search for “near me”, we are that solution.
Reviews and Testimonials: We have over two thousand reviews with a 4.9 rating.
Clear Pricing: We provide up-front pricing. There are no hidden fees.
Communication and Professionalism: We respond promptly to your inquiries and returns calls and emails in a timely manner. We explain the installation process clearly and answer all your questions. Finally, we arrive on time, maintains a clean work area, and communicates effectively throughout the project.
Warranty and Maintenance: We warranty our work, and provide maintenance plans.

Fast Water Heater currently services the below areas. If you didn’t find what you’re looking for, give us a call and we’ll get your questions answered fast!
- Washington, including Water Heater Seattle, Tacoma and the South Sound and Snohomish & Skagit Counties.
- Oregon, including the greater Portland area, Vancouver and south down to Salem & Eugene.
- Bay Area, including East Bay, San Jose, Napa, Sonoma & Marin Counties, Monterrey County, Santa Cruz County and San Fransisco Water Heater.
- Southern California, including Orange County, Ventura County, San Bernadino & the Inland Empire, and Los Angeles Water Heater.