The Benefits of High-Efficiency Power Management
Rheem is proud to
offer the SEREGEN® 300 Series 20kW Home Generator System. Boasting a
993cc commercial Vanguard™ engine and 28,000 watts of starting power,
the system offers whole house comfort & control in an extremely
compact & affordable package. The standard 20kW package will supply
enough automatic backup power to manage two 5-ton AC units. The optional
Power Management System upgrade optimizes the SEREGEN 300 Series with
advanced computer-controlled power for maximum efficiency.
Fully Automatic – Advanced electronics will detect a utility power outage and automatically start the generator whether you are home or away.
Whole House Comfort – The SEREGEN 300 Series will
supply enough power to manage up to two 5-ton air conditioners in
addition to essential household power requirements.
Vanguard™ 993cc Engine – An industry leading commercial grade
Big Block™ air-cooled engine provides powerful, quiet, durable
performance for large, power hungry homes - perfect for years of
heavy-duty standby power.
Continuous Fuel Supply – A permanent connection to
natural gas or propane delivers uninterrupted performance with no messy
gasoline storage and refueling.
Sound Shield™ Technology – engineered air passages, an
automotive-style exhaust system and acoustic foam dampeners ensure quiet
operation. (68dB under normal operation)
Turn Key Extras – each system includes a battery
charger, hour meter, and installation pad. The engine also comes
pre-filled with synthetic oil and is broken in at the factory, saving
you time and money.
Premium Warranty – 4 year limited - your guarantee of quality and performance.
Legendary Service & Support – From professional sizing and delivery to installation and service, trust the proven experts at Rheem for complete peace of mind.
POWERS BOTH ESSENTIALS & HIGH-WATTAGE ITEMS FOR PREMIUM COMFORT & MAXIMUM EFFICIENCY:
- Lights
- Furnace Fan
- Refrigerator/Freezer
- Garage door opener
- Security System
- Humidifier/dehumidifier
- Entertainment System
- Sump Pump
- Outside Lighting
- Microwave
- Central Air Conditioner 1
- Central Air Conditioner 2
- Range/Stove
- Dryer
- Water Well pump
- Hot Tub
- Pool Heater
- Water Heater
Specifications
- Model GEN20AD
- Fully Automatic Start
- Provides Whole House Comfort
- Industrial Strength Engines
- Continuous Fuel Supply from Natural Gas/Propane
- Sound Shield™ Technology
- Contemporary Space Saving Design
- Durable Outdoor Enclosure
Energy Guide Details
- Understanding Energy Efficiency
- Click here to review this water heater's Energy Guide for more details.
Certifications
Documents
Warranties

KwikComfort® Financing can help make your purchase even easier.
Ruud makes it easy to find a financing option that works for you! With many options and benefits available,
KwikComfort Financing is the best way to get the home comfort you need without the wait.
- Applications made easyWe'll help you avoid lengthy contracts, headaches and hassles.
- Kwik credit decisionsYou'll get an answer to your application within minutes.
- Fast credit for the futureFinance your Ruud equipment and anything you want to add later.
- Reduced interest/fixed paymentsGet low interest and fixed monthly payments until the purchase is paid.
- Minimum monthly paymentTake advantage of convenient monthly payments that fit your budget.
- Deferred interest/no interestEnjoy interest-free payments as long as the balance is paid by the due date.
