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Rheem Professional Classic Series Power Vent Gas Water Heater
Rheem Professional Classic Series Power Vent Gas Water Heater
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Rheem Professional Classic Series Power Vent Gas Water Heater
Rheem Professional Classic Series Power Vent Gas Water Heater

Rheem Professional Classic® Series (Heavy-Duty) Power Vent Gas Water Heater

SKU: N/A

Price range: $1,640.00 through $1,690.00

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The 4Most Energy Edge

Choosing 4Most Energy for your Rheem installation means more than just a new water heater; it’s a commitment to home safety and professional reliability.

  • Expert Induced Draft Configuration: Power vent systems require precise calibration. Our technicians are factory-trained to ensure your vent run is optimized for safety and peak performance.
  • Space Heating Ready: We can configure select models with side water connections, allowing your water heater to serve dual purposes for both domestic hot water and hydronic space heating applications.
  • Reliability for Ontario Climates: We specialize in high-ambient temperature installations, ensuring your water heater performs even during Ontario’s most humid summers (rated up to 175°F with our service kits).
  • Sediment Defense: Every 4Most installation includes the EverKleen® patented system setup, which fights sediment build-up to maintain high efficiency and extend the life of your tank.

Warranty Highlight

Total Protection for Your Home:

  • 1-Year Professional Labor Warranty: Exclusively provided by 4Most Energy to ensure your installation is worry-free.
  • 6-Year Limited Tank Warranty (Upgradeable to 10 years with ProtectionPlus®).

Warranty Information Rheem ProfessionalClasic PDF

Get Your Custom Installation Quote

Installation of power vent models requires a 120V electrical connection and specific PVC venting. Help us prepare your quote by answering a few quick questions:

  1. Current Venting: Do you currently have a black ABS or white PVC vent pipe exiting your home?
  2. Power Access: Is there a standard electrical outlet within 6 feet of your current water heater?
  3. Home Size: How many full bathrooms and occupants are in your household?
  4. Dual Purpose: Are you interested in using your water heater for underfloor or space heating?

Rheem 689944 Instruction Installation Manual PDF

Feature Description
Guardian System™ & Sensor Exclusive air/fuel shut-off device with a maintenance-free sensor. Disables the heater if flammable vapors are detected.
New Whisper Quiet Blower Redesigned Induced Draft blower exhausts flue gases with minimal noise, making it ideal for units near living spaces.
Integrated Self-Diagnostic System Electronic gas control, thermostat, and gas valve in one unit for improved monitoring and service.
Eco-Friendly Burner SCAQMD Rule 1121 compliant (10ng/J NOx emissions) to meet the highest environmental standards.
Available Variations Available in 40 and 50-Gallon capacities. Available in Tall and Short profiles to fit crawl spaces or tight mechanical rooms.
Side Connections Select models available with side water connections for integrated potable water and space heating applications.
Professional Installation Vaughan & GTA Experts: 4Most Energy provides a full safety audit, electrical setup, and venting configurations up to 100 equivalent feet.

Rheem 689944 Specification PDF

Rheem Professional Classic Specifications

Technical details for the PROG series Power Vent water heaters.
Shower Guide: Estimates based on standard shower head flow rates.
Feature PROG40S-36N CN67 PV PROG50S-36N CN67 PV
Capacity 40 Gallons 50 Gallons
Recovery (90°F Rise) 36.4 GPH 36.4 GPH
First Hour Rating 66 Gallons 78 Gallons
UEF Rating 0.65 0.70
Unit Dimensions (H x W) 51.75" x 21.75" 51.75" x 23.75"
Single Shower Time ~18 Minutes 23 Minutes
Back-to-Back Showers 1.5 Showers 2 Showers
Specifications are subject to change without notice.

Frequently Asked Questions

The Navien NPE-A2 Series includes three sizes designed for different home demands:

  • NPE-180A2 → 150,000 BTU • Up to 8.4 GPM • Ideal for small–medium homes (1–2 bathrooms)

  • NPE-210A2 → 180,000 BTU • Up to 10.1 GPM • Great for medium homes (2–3 bathrooms)

  • NPE-240A2 → 199,000 BTU • Up to 11.2 GPM • Best for large homes (+ 3 bathrooms)  All models feature Navien’s built‑in ComfortFlow® recirculation pump + buffer tank.

Buying your Rheem tank is almost always the smarter financial move. Here is why renting doesn't make sense for a high-quality Professional Classic unit:

  • The Cost Trap: Over a typical 15-year rental agreement, you end up paying 6 times more than the actual cost of a Rheem Professional tank and installation.
  • Low Maintenance, High Quality: Because the Rheem Professional series is built with brass valves and a thicker tank lining, it is a low-maintenance, high-reliability unit. Paying a monthly fee for "protection" on a tank this durable is an unnecessary expense.
  • Escalating Fees: Rental contracts usually include price escalations every year, meaning your bill keeps going up while your Rheem tank gets older.

Contract Penalties: Most rental companies trap you in 15-year terms with massive penalties if you try to break the contract, move houses, or upgrade your system.

While they share the same core tank quality, the Professional Classic series is built for longevity and contractor-level performance. Key differences include:

  • Exclusive Labor Protection: Buying retail means you are responsible for finding and paying a plumber if anything goes wrong. With 4Most Energy, you get an exclusive one-year labor warranty on the installation.
  • Components: Professional models feature durable brass drain valves and metal-cased gas controls, whereas retail models often use plastic alternatives.

Support: Professional units are supported by licensed contractors who handle warranty exchanges directly, saving you from dealing with big-box customer service and long wait times for parts.

Yes, select models in this series come with side water connections specifically designed for space heating applications. Ask us about a "Combination" setup.

In a power vent system, "Induced Draft" refers to the specialized blower assembly mounted on top of the tank. This motor mechanically "induces" a draft by pulling combustion gases through the heater and pushing them out through a plastic vent pipe. This allows for flexible horizontal venting through a side wall (up to 100-150 feet) rather than relying on a traditional vertical chimney.

Service Area
Greater Toronto Area (GTA) and surrounding regions

 Toronto, Markham, Richmond Hill, Vaughan, Aurora, Newmarket, Scarborough, Brampton, and Mississauga.

Extended Service Area: Stouffville, Oshawa, Barrie, Orangeville, Hamilton, St. Catharines, Guelph, Kitchener.

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