Hot Water Heaters | Boilers

Water heaters and boilers are residential and commercial appliances that provide a continuous supply of hot water throughout a building for conditioning or washing. The variation in names and functions of hot water heaters is attributed to their capacity to heat drinking water, usage in the a range of purposes in the domestic or industrial sphere, and their respective energy sources. Fossil fuels are commonly used for heating water, but alternative energy, backed with fossil fuels or electricity, can also be implemented instead. Electric heat pump hot water heaters are another more efficient, but more expensive, option. Hot water for the purposes of space heating is heated in a boiler.

What size water heater do I need?

Determining what size water heater is needed requires figuring out the amount of water one uses during the busiest hour, or the time of day when the most hot water usage occurs. For a general estimate, a household of 1 to 2 people requires 30-40 gallons (114-151 liters). A household of 2 to 3 people calls for 40-50 gallons (151-189 liters) and 50-60 gallons (189-227 liters) for 3 to 4 people.

How long do water heaters last?

The general lifespan of a water heater ranges from 8 to 12 years. The exact life expectancy is dependent on the quality of water and installation as well as the overall design of the unit. A water heater headed towards 10 years is typically due for a replacement.

How do you install a water heater?

For a gas water heater, disconnect the gas and water lines and detach the gas exhaust. Then, set the water heater in position. Install both the heat valves and water line connections. The last step is to attach the gas line. For an electric water heater, move it into a drain pan and install both the T&P valve and discharge pipe. After, attach the hoses and fill up the water heater by removing the aerator and turning on the water supply. Connect any wiring and check that the tank is full by turning on the faucet.

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Hot Water Heaters

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Rheem Performance Platinum Gas Water Heater - 50 Gallon

The Rheem Performance Platinum Gas Water Heater (50 Gallon) is ideal for medium-sized households. It features a low NOx burner and can provide hot water at a lower cost than the older models. A self-diagnostic gas control valve helps improve monitoring and servicing of the heater, and the push-button ignition system provides safety during startups.

The Rheem Performance Platinum Gas Water Heater (50 Gallon) has an overall height of 50.5” (128.3 cm) and diameter of 23.75” (60.3 cm). The Rheem Performance Platinum Gas Water Heater (50 Gallon) weighs 160 lb (72.6 kg) and has a tank capacity of 50 gal (189 L).

Collection of elevation and plan drawings of the Rheem Performance Platinum Gas Water Heater (50 Gallon) with dimensions
The Rheem Performance Platinum Gas Water Heater (50 Gallon) is ideal for medium-sized households. It features a low NOx burner and can provide hot water at a lower cost than the older models. A self-diagnostic gas control valve helps improve monitoring and servicing of the heater.

The Rheem Performance Platinum Gas Water Heater (50 Gallon) has an overall height of 50.5” (128.3 cm) and diameter of 23.75” (60.3 cm). The Rheem Performance Platinum Gas Water Heater (50 Gallon) weighs 160 lb (72.6 kg) and has a tank capacity of 50 gal (189 L).

Collection of elevation and plan drawings of the Rheem Performance Platinum Gas Water Heater (50 Gallon) with dimensions
Rheem Performance Platinum Gas Water Heater - 50 Gallon
Height:
50.5” | 128.3 cm
Width:
23.75” | 60.3 cm
Length:
Depth:
23.75” | 60.3 cm
Weight:
160 lb | 72.6 kg
Area:

Tank Capacity: 50 gal | 189 L

UEF: .67

Type
Gas Tank Water Heater
Designer
Rheem

Drawings include:
Rheem Performance Platinum Gas Water Heater (50 Gallon) front elevation, plan

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Rheem Performance Tankless Electric Water Heater - 8.8 GPM

The Rheem Performance Tankless Electric Water Heater (8.8 GPM) is mainly for residential use either in the whole house or point-to-point use for a sink, dishwasher, shower, and bathtub. Because of their small size, low cost, and maintenance, they can be installed under a sink or cabinets, on the wall, or in confined places with the bottom part of the tank being the water connection point.

The Rheem Performance Tankless Electric Water Heater (8.8 GPM) has an overall height of 18.25” (46.4 cm), width of 21.625” (54.9 cm), and depth of 3.5” (8.9 cm). The Rheem Performance Tankless Electric Water Heater (8.8 GPM) weighs 22.7 lb (10.3 kg) and has a maximum flow rate of 8.8 gallons per minute.

Set of dimensioned plan and elevation drawings of the Rheem Performance Tankless Electric Water Heater (8.8 GPM)
The Rheem Performance Tankless Electric Water Heater (8.8 GPM) is mainly for residential use either in the whole house or point-to-point use. Because of their small size, low cost, and maintenance, they can be installed under a sink or cabinets, on the wall, or in confined places.

The Rheem Performance Tankless Electric Water Heater (8.8 GPM) has an overall height of 18.25” (46.4 cm), width of 21.625” (54.9 cm), and depth of 3.5” (8.9 cm). The Rheem Performance Tankless Electric Water Heater (8.8 GPM) weighs 22.7 lb (10.3 kg) and has a maximum flow rate of 8.8 gallons per minute.

Set of dimensioned plan and elevation drawings of the Rheem Performance Tankless Electric Water Heater (8.8 GPM)
Rheem Performance Tankless Electric Water Heater - 8.8 GPM
Height:
18.25” | 46.4 cm
Width:
21.625” | 54.9 cm
Length:
Depth:
3.5” | 8.9 cm
Weight:
22.7 lb | 10.3 kg
Area:

Max GPM: 8.8

EF: .99

Type
Tankless Electric Water Heater
Designer
Rheem

Drawings include:
Rheem Performance Tankless Electric Water Heater (8.8 GPM) front elevation, side, plan

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Rheem Professional Prestige Hybrid Water Heater - 65 Gallon

The Rheem Professional Prestige Hybrid Water Heater (65 Gallon) will benefit not only your household but also the environment as it produces fewer greenhouse gases. It is ideal for showers, washing dishes, doing the laundry, and can operate in any weather or season. The water heater features an EcoNet built-in leak detection system to send you water leak alerts to your phone and operation modes with energy saver. Vacation modes also allow you to set the heater to provide water when needed or hold indefinitely.

The Rheem Professional Prestige Hybrid Water Heater (65 Gallon) has an overall height of 64” (162.6 cm) and diameter of 24.25” (61.6 cm). The Rheem Professional Prestige Hybrid Water Heater (65 Gallon) weighs 262 lb (118.8 kg) and has a tank capacity of 65 gal (246 L).

Dimensioned elevation and plan drawings of the Rheem Professional Prestige Hybrid Water Heater (65 Gallon)
The Rheem Professional Prestige Hybrid Water Heater (65 Gallon) will benefit not only your household but also the environment as it produces fewer greenhouse gases. It is ideal for showers, washing dishes, doing the laundry, and can operate in any weather or season.

The Rheem Professional Prestige Hybrid Water Heater (65 Gallon) has an overall height of 64” (162.6 cm) and diameter of 24.25” (61.6 cm). The Rheem Professional Prestige Hybrid Water Heater (65 Gallon) weighs 262 lb (118.8 kg) and has a tank capacity of 65 gal (246 L).

Dimensioned elevation and plan drawings of the Rheem Professional Prestige Hybrid Water Heater (65 Gallon)
Rheem Professional Prestige Hybrid Water Heater - 65 Gallon
Height:
64” | 162.6 cm
Width:
24.25” | 61.6 cm
Length:
Depth:
24.25” | 61.6 cm
Weight:
262 lb | 118.8 kg
Area:

Tank Capacity: 65 gal | 246 L

UEF: 3.70

Type
Hybrid Tank Water Heater
Designer
Rheem

Drawings include:
Rheem Professional Prestige Hybrid Water Heater (65 Gallon) front elevation, plan

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Rheem Marathon Electric Water Heater - 30 Gallon

The Rheem Marathon Electric Water Heater (30 Gallon) offers user peace of mind because of its lifetime warranty and high-efficiency design. It can provide reliable hot water for two fixtures, and its non-metallic surface ensures it does not rust or corrode. The polyurethane insulation ensures low energy consumption, and the several layers of filament wound fiberglass ensure the tank last longer.

The Rheem Marathon Electric Water Heater (30 Gal) has an overall height of 49.5” (125.7 cm) and diameter of 21.625” (54.9 cm). The Rheem Marathon Electric Water Heater (30 Gal) weighs 75 lb (34 kg) and has a tank capacity of 30 gal (114 L).

Set of dimensioned drawings of the Rheem Marathon Electric Water Heater (30 Gal) measured with height and diameter
The Rheem Marathon Electric Water Heater (30 Gallon) offers user peace of mind because of its lifetime warranty and high-efficiency design. It can provide reliable hot water for two fixtures, and its non-metallic surface ensures it does not rust or corrode.

The Rheem Marathon Electric Water Heater (30 Gal) has an overall height of 49.5” (125.7 cm) and diameter of 21.625” (54.9 cm). The Rheem Marathon Electric Water Heater (30 Gal) weighs 75 lb (34 kg) and has a tank capacity of 30 gal (114 L).

Set of dimensioned drawings of the Rheem Marathon Electric Water Heater (30 Gal) measured with height and diameter
Rheem Marathon Electric Water Heater - 30 Gallon
Height:
49.5” | 125.7 cm
Width:
21.625” | 54.9 cm
Length:
Depth:
21.625” | 54.9 cm
Weight:
75 lb | 34 kg
Area:

Tank Capacity: 30 gal | 114 L

UEF: .88

Type
Electric Tank Water Heater
Designer
Rheem

Drawings include:
Rheem Marathon Electric Water Heater (30 Gallon) front elevation, side, plan

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Rheem Marathon Point-of-Use Electric Water Heater - 20 Gallon

The Rheem Marathon Point-of-Use Electric Water Heater (20 Gallon) is perfect for light-duty commercial applications in condos, cabins, and small families or where large water heaters cannot fit. Like the other marathons, the outer shell is molded in polyurethane to resist scratches, dents, and corrosion. Since it is plastic, it requires no anode rod, and its thermal fused element protects the heater against dry-firing.

The Rheem Marathon Point-of-Use Electric Water Heater (20 gal) has an overall height of 30.5” (77.5 cm) and diameter of 23.5” (59.7 cm). The Rheem Marathon Point-of-Use Electric Water Heater (20 gal) weighs 61 lb (27.7 kg) and has a tank capacity of 20 gal (76 L).

Dimensioned elevation and plan drawings of the Rheem Marathon Point-of-Use Electric Water Heater (20 gal)
The Rheem Marathon Point-of-Use Electric Water Heater (20 Gallon) is perfect for light-duty commercial applications in condos, cabins, and small families or where large water heaters cannot fit. Like other Marathons, the outer shell is molded in polyurethane to resist scratches, dents and corrosion.

The Rheem Marathon Point-of-Use Electric Water Heater (20 gal) has an overall height of 30.5” (77.5 cm) and diameter of 23.5” (59.7 cm). The Rheem Marathon Point-of-Use Electric Water Heater (20 gal) weighs 61 lb (27.7 kg) and has a tank capacity of 20 gal (76 L).

Dimensioned elevation and plan drawings of the Rheem Marathon Point-of-Use Electric Water Heater (20 gal)
Rheem Marathon Point-of-Use Electric Water Heater - 20 Gallon
Height:
30.5” | 77.5 cm
Width:
23.5” | 59.7 cm
Length:
Depth:
23.5” | 59.7 cm
Weight:
61 lb | 27.7 kg
Area:

Tank Capacity: 20 gal | 76 L

Type
Electric Tank Water Heater
Designer
Rheem

Drawings include:
Rheem Marathon Point-of-Use Electric Water Heater - 20 Gallon front elevation, plan

Details & Downloads

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