Suburban RV water heaters use a porcelain-lined, steel water tank that has an anode rod to offset electrolytical effects. According to Suburban this may double, or triple the hot water heater life. Also Suburban gas waters feature 12,000 BTUH for a rapid recovery rate, and combo gas/electric water heaters utilize a 1,440-watt heating element to recover an extra 6 gallons of hot water per hour.
 
For additional insulation, Suburban uses a copolymer insulation jacket which the company claims will retain heat better than the cardboard insulation used on competing RV hot water heaters.
6261APW SW model 4-6 Gal --NEW--Suburban Water Heater Door

6261APW SW model 4-6 Gal --NEW--Suburban Water Heater Door

PayPal - $30.99 1h 38m
Suburban Water Heater 232317 120V AC,  140 Deg Thermostat Limit Switch Assembly

Suburban Water Heater 232317 120V AC, 140 Deg Thermostat Limit Switch Assembly

PayPal - $22.99 1h 58m
6272APW-NEW-Suburban 10 Gal. On Demand Water Heater Access Panel

6272APW-NEW-Suburban 10 Gal. On Demand Water Heater Access Panel

PayPal - $30.99 3h 7m
Suburban SW6DE RV Water Heater Camper Trailer DSI Elec LP 5093A Free Shipping

Suburban SW6DE RV Water Heater Camper Trailer DSI Elec LP 5093A Free Shipping

PayPal - $329.00 3h 26m
Suburban SW10DE Direct Spark Electric 10 Gallon Water Heater Warranty

Suburban SW10DE Direct Spark Electric 10 Gallon Water Heater Warranty

PayPal - $370.00 4h 7m
Suburban SW10DE Direct Spark Electric 10 Gallon Water Heater

Suburban SW10DE Direct Spark Electric 10 Gallon Water Heater

PayPal - $430.00 5h 36m
Suburban SW6D Water Heater 6 Gallon,  DSI,  Trailer Camper RV 5092A

Suburban SW6D Water Heater 6 Gallon, DSI, Trailer Camper RV 5092A

PayPal - $330.00 5h 37m
Suburban RV Camper Trailer Gas Electric Water Heater SW6DE 6 Gallon 12, 000 BTU

Suburban RV Camper Trailer Gas Electric Water Heater SW6DE 6 Gallon 12, 000 BTU

PayPal - $410.05 7h 37m
Suburban SW10DE RV Water Heater 10 Gallon,  DSI,  Trailer Camper 5126A

Suburban SW10DE RV Water Heater 10 Gallon, DSI, Trailer Camper 5126A

PayPal - $464.59 7h 59m
Genuine Suburban 232319 RV Water Heater ECO Thermostat T Stat 140 Degree 12 Volt

Genuine Suburban 232319 RV Water Heater ECO Thermostat T Stat 140 Degree 12 Volt

PayPal - $23.44 8h
Suburban 10 Gallon RV Water Heater SW10DE

Suburban 10 Gallon RV Water Heater SW10DE

PayPal 16 $256.00 9h 31m
Suburban Water Heater Latch Door Spring Clip Clamp Lock catch Trailer RV Kit

Suburban Water Heater Latch Door Spring Clip Clamp Lock catch Trailer RV Kit

PayPal - $14.99 9h 34m
232767 Suburban Water Heater Magnesium Anode Rod

232767 Suburban Water Heater Magnesium Anode Rod

PayPal - $16.85 13h 42m
Suburban 160584 Water Heater L230 Thermostat Limit Switch

Suburban 160584 Water Heater L230 Thermostat Limit Switch

PayPal - $12.95 13h 43m
Suburban 5101A SW16D 16 Gallon Direct Spark RV Water Heater

Suburban 5101A SW16D 16 Gallon Direct Spark RV Water Heater

PayPal - $582.00 13h 44m
$AVE - 2 PACK 9" Water Heater Anode Rod Suburban Original Replacement -Camper RV

$AVE - 2 PACK 9" Water Heater Anode Rod Suburban Original Replacement -Camper RV

PayPal - $25.99 17h 8m
6261AEB SW model 4-6 gal -BLACK-Suburban Water Heater Door

6261AEB SW model 4-6 gal -BLACK-Suburban Water Heater Door

PayPal - $35.99 17h 52m
Suburban Polar White 4 & 6 Gallon Water Heater Access Door 6255APW

Suburban Polar White 4 & 6 Gallon Water Heater Access Door 6255APW

PayPal - $44.43 19h 1m
Suburban | 232282 | RV Water Heater 12 Volt 130 Degree Thermostat

Suburban | 232282 | RV Water Heater 12 Volt 130 Degree Thermostat

PayPal - $20.56 19h 57m
SUBURBAN 6 Gallon Water Heater SW6DE - Combination LP Gas & Electric w  DSI NEW

SUBURBAN 6 Gallon Water Heater SW6DE - Combination LP Gas & Electric w DSI NEW

PayPal - $369.00 20h 57m
Suburban water heater models include SW6P,  SW10P, SW6PR, SW10PR, SW6PE, SW10PE, SW6PER, SW10PER, SW6D, SW10D, SW6DE, SW10DE, SW6DEM, SW10DEM