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A.O. Smith Cyclone XHE Water Heater

Affordable For Even the Smallest Companies. Purely and Simply Today's Best Valve In A High Efficiency Commercial Water Heater. Introducing the World's First 99% Efficient Water Heaters

The original Cyclone XHE® line (BTH-120 through BTH-250) set standards for performance and quality that still stand. 94% thermal efficiency. Multiple venting options. Space-savings, time-saving installatin versatility.

Now, with an unprecedented 99% thermal efficiency, the Cyclone BTH-300 and BTH-400* raise the bar yet again. The newest Cyclone's combine 130 gallon storage with 300,000 and 400,000 BTU inputs. By manifolding multiple units together, total storage and recovery can be increased dramatically.

The Cyclone XHE® far surpasses federally mandates ASHRAE standards for heat loss and complies with CEC Title 24. Top and bottom insulation and a sealed submerged combustion chamber reduce heat loss to an absolute minimum. 99% thermal efficiency allows Cyclone BTH-300 and BTH-400 to provide total investment recovery in as little as two years.

The expanded Cyclone line gives you a commercial water heater choice for mid-sized restaurants and 50-300 room hotels, with significant advantages over both standard systems and boiler installations. And breaking the 99% barrier truly does make Cyclone the most efficient water heater line EVER built!!

Strength in Numbers

Cyclone XHE water heaters can be installed in manifolded multiples to serve the highest demand application in place of boiler systems, four BTH-400's can be manifolded to provide total storage of 520 gallons and input of 1,600,000 BTUs.

• Cyclone outperforms standard-efficiency units – With thermal efficiencies from 94% to 99%, Cyclone delivers more hot water, with lower operating costs, than comparably sized water heaters with 78% to 80% thermal efficiency.
• Revolutionary burner design – Patented Dynamix Cyclonic Burner™ has advanced nozzle design with unique, vaned configuration that forces blower-driven air into a counterclockwise motion, and fuel into a clockwise motion for precise mixing at point of ignition.
• New, longer heat exchanger on BTH-300 and BTH-400 – The heat exchanger on the newest Cyclone models is twice as long as other models, doubling heat transfer surface to help achieve 99% thermal efficiency.
• Exclusive PermaGlas® Ultra Coat™ glass lining – All waterside tank surfaces are coated with a continuous layer of protection. Interior of heat exchanger is also coated to protect against corrosive flue gas condensate.
• True "hook-up-and-run" simplicity – Dynamix Cyclonic Burner™ is fired up before shipment. Just connect water, gas, electrical and venting, flip the switch, set the temperature, and it's off and running. It's that easy.
• Installs in absolute minimum of space – Zero clearance to combustibles, and combustible floor approvals. Exhaust and air intake are positioned to permit placing heater in a corner or flush against a wall. Front and top hot water outlet options.
• Diagnostic control panel – Ideal for food service and other applications requiring precise control for sanitizing and processed water. Display includes status and fault indicating lights plus temperature and numeric code. Also equipped with switch for adjustment of temperature and differential settings.
• Unbeatable venting flexibility – For new construction or retrofit, Cyclone offers four venting options using inexpensive 3" or 4" PVC pipe. This gives the specifier or installer a cost-saving venting choice for any application.
• Manufacturers may change product specifications and information at any time without notice.  For additional information, please visit the manufacturer's web site.
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  • Cylone Water Heater Spec Sheet (150 KB Adobe PDF)
  • A.O. Smith Spec Sheet BTH 300, 400 (925 KB Adobe PDF)
  • Cyclone Owner's Manual (665 KB Adobe PDF)
  • Cyclone Owner's Manual BTH 300, 400 (625 KB Adobe PDF)
  • Service Handbook (1.9 MB Adobe PDF)
  • See Closeup of Display
  • Water Heater Sizing Guidelines (207 KB Adobe PDF)

IMPORTANT:  By purchasing this water heater from JupiterHeating.com, the customer is agreeing that the unit will be installed by a licensed, professional heating contractor; that the customer and installer will follow all local zoning regulations, as well as all manufacturer's installation instructions, policies, and warranty requirements; and that the customer has read and understood JupiterHeating.com's Terms of Sale.

Shipping for unit is $200 to anywhere in the continental United States (multiple units are shipped at no additional charge).  The rate is based on residential delivery with a liftgate.  This unit is strapped onto a pallet and shipped via LTL to minimize risk of shipping damage.  Shipping savings may by possible for commercial delivery, or for not needing a liftgate. Contact Us for a custom shipping quote if any of those situations apply, or if you are located outside the continental United States.

Cyclone FAQs

• How far can I vent this unit?

  You can vent up to 50 equivalent feet in 3 inch PVC or 120 equivalent feet in 4 inch PVC. Each 90 degree elbow is equal to 5 equivalent feet of pipe and each 45 degree elbow is equal to 2.5 equivalent feet of pipe. You do not count the first elbow or the termination.

• What size electrical circuit is required to run this unit?

  You will need a separate circuit for each heater. The total amperage required is 5A.

• What is the Ohms resistance of the ignitor and gas valve?

  See chart below:

  	NATURAL GAS VALVE	PROPANE GAS VALVE
  IGNITOR	50-300	50-300
  BTH 120	100	NA
  BTH 150	560	63
  BTH 199	560	63
  BTH 250	63	NA

  
  
• What is the minimum supply gas pressure required to operate these units?  (Burner must be firing when measuring these pressures).

  See chart below:

  MODEL	SERIES	NATURAL	PROPANE
  BTH 120	920/921	5.0	11.0
  BTH 150	920/921	5.0	11.0
  BTH 199	920/921	5.0	11.0
  BTH 250	920/921	7.0	11.0

  
  
• At what pressure does the blocked flue switch open?
  
  BTH 120   2.0 inches   920/921 series 966/67 is 4.0 inches
  BTH 150   2.53 inches  920/921 series 966/67 is 4.0 inches
  BTH 199   2.53 inches  920/921 series 966/67 is 4.0 inches
  BTH 250   2.53 inches  920/921 series 966/67 is 4.0 inches

* All BTH models are tested to the Americal National Standards Institute Z21.10.3. These efficiency ratings are certified and published in the GAMA directory.

Information Source: A.O. Smith

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