Marey Replacement for Bosch 80VP, Bosch 38B and Bosch 330PN

The Marey Power Gas GA10 or GA10DP 10L tankless water heater is the closest possible replacement for Bosch's popular line of 80VP, 38B or the 330PN tankless water heaters.  These units come in either Natural Gas (NG) or Liquid Propane (LP).  The only difference of the Marey GA10 and the GA10DP is that the GA10DP has a small digital panel on the front that shows the temperature when the heater is in use.

Like these Bosch tankless water heaters, the Marey GA10 or GA10DP tankless water heater has no electric requirement and uses 4" double-walled galvanized B-Vent for its exhaust venting. The Marey GA10 or GA10DP is perfect for off-grid applications.

While the Bosch 80VP, 38B and 330PN tankless water heaters all had a standing pilot light, the Marey 10L 2.6 GPM unit uses two D-Cell batteries for its ignition source.

At 79,000 BTUs, the Marey GA10 or GA10DP is very close to the 78,000 BTU maximum input of the Bosch 80VP, 38B and 330PN water heaters.

Marey GA10 or GA10DP 10L 2.6 GPM Tankless Water Heater
If you are looking to replace your existing Bosch 80VP, 38B or 330PN tankless water heater and your current unit is vented vertically through the roof then the Marey GA10 or GA10DP will be a simple and straightforward replacement.

The Marey Power Gas GA10 or GA10DP must be vented vertically with 4" galvanized B vent and there is no sidewall power vent for these units.

The Marey GA10 or GA10DP will work with lower water pressures than the Bosch tankless water heaters; the Marey GA10 or GA10DP will run on a minimum of 10 PSI water pressure.

The Marey GA10 and GA10DP 10L tankless water heaters are approved for installation throughout the US (including California) and Canada.

Please call GlobalTowne at 888-726-9752 for further questions or to place an order.

Venting Change for Marey Power Gas Models GA5L/10L/16L

GlobalTowne is an authorized distributor of the Marey gas and electric tankless water heaters.  Marey has recently updated their manual for the power gas GA5L/10L and 16L units.  The installation manual has been revised to show that the 5L/10L and 16L power gas units must be vented vertically up through the roof.  The minimum vertical vent height shall be no less than 6'. Sidewall venting on a naturally drafting unit is not permissible and is against the National Fuel Gas Code (NFGC).  Below is a diagram that shows the vertical venting and also the venting specifications for each unit. 

Venting Specifications for:
Marey Power Gas GA5L - Uses 4" diameter double walled galvanized type B-vent

Marey Power Gas GA10L - Uses 4" diameter double walled galvanized type B-vent

Marey Power Gas GA16L - Uses 5" diameter double walled galvanized type B-vent

For further questions on the Marey products please call GlobalTowne at 888-726-9752.

Descaling Marey Gas tankless water heaters

GlobalTowne carries a Whitlam Flow-Aide Descaler PLUS Kit for descaling the Marey gas tankless water heaters.  Flow Aide System Descaler is a non-toxic concentrate which is certified to NSF/ANSI 60 for use as a cleaner in potable water systems. Flow-Aide is the perfect descaling solution to keep your tankless water heater in good operation. Combining Flow-Aide with one of our Webstone Isolation Valve Kits (Service Valves) will make the descaling process quick and easy!  This descaling kit comes with almost everything you would need to descale your Marey gas tankless water heater. You would need to get a couple 1/2" to 3/4" bushings to connect the Webstone isolation valves to the water connections.

Water scale deposits are a significant cause of heat transfer loss, along with the subsequent increase in energy costs. In fact, even a thin layer of scale (1/32") can cause a 30% increase in the cost to operate that piece of equipment. Keeping the heating passages free of mineral deposits significantly improves efficiency, conserves energy, extends the useful life of the equipment, and saves you time & money.

The Flow-Aide Descaling Kit includes the following:

1 - 3.5 Gallon Bucket

1 - 350 GPH Pump

2 - 5 Foot Rubber Hoses

1 - Quart Flow-Aide

Set of Lead-free 3/4" Webstone Service Valves 44443WPR

Please call GlobalTowne at 888-726-9752 for further questions or to order a Whitlam Flow Aide Kit.