A. O. Smith BTH-199 Commercial Gas Water Heater
- 100 gallon tank, commercial natural gas
- 199,000 BTU input
- Submerged combustion chamber with helical heat exchanger coil
- Powered anodes and Permaglas glass lining
- 27.75 x 75.5 inches (W x H)
- LCD display on an intelligent control system
- 3 year limited warranty
Updated 20 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A high efficiency commercial gas tank heater for sites with heavy hot water demand, with corrosion protection for varied water. Efficiency and recovery figures are not listed, so get the spec sheet first.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0062O9RTIModel: BTH-199Category: Water Heaters
Overview
A. O. Smith built the Cyclone Xi as a commercial tank water heater that burns natural gas in a submerged combustion chamber. Heat moves into the stored water through a helical coil, and an intelligent control system with an LCD display manages it.
High input paired with a large tank is the reason to buy, for commercial sites that drain smaller heaters fast. Powered anodes and a glass lined tank target long life in changing water conditions. Installation calls for professional gas and vent work and room for a tall, wide tank.
Who it's for
Commercial kitchens, laundries and multi unit buildings with steady hot water loads can lean on its capacity and burner input. Households with ordinary use, or sites without natural gas, will find it oversized or unable to run.
Pros and cons
- Large tank for high demand
- Submerged combustion chamber design
- Helical coil heat exchanger
- Powered anodes protect the tank
- Efficiency rating not listed
- Natural gas only per listing
- Large footprint needs a mechanical room
- Venting needs professional installation
Performance notes
Hot water delivery depends on how fast the burner can reheat the tank, which is set by gas input and how well the submerged chamber and coil pass heat into the water. Inlet water temperature and draw pattern change how long the stored volume lasts. Powered anodes counter corrosion as water chemistry varies.
Specifications
| Brand | A. O. Smith |
|---|---|
| Model | BTH-199 |
| Vent Size | 3 |
Frequently asked questions
What maintenance does the A. O. Smith BTH-199 need?
The listing gives no maintenance schedule. It names powered anodes for tank protection in varying water conditions and a Permaglas glass lining; ask A. O. Smith for service intervals.
Does the A. O. Smith BTH-199 run on propane?
The listing names natural gas only. No propane version or conversion is mentioned.
What is the vent size on the A. O. Smith BTH-199?
The listing gives a vent size of 3 without stating the unit, so confirm it on the spec sheet before planning the vent run.
Is the A. O. Smith Cyclone Xi a tankless water heater?
No. It is a tank type water heater that stores water and reheats it with a submerged combustion chamber.