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What IS a Gulfstream A-Class?

The Gulfstream A-Class is Gledhill's latest version of the Gulfstream, and represents a major 'ground-up' re-design of the appliance. Many of the problems with the Gulfstream 2000 have been addressed but the unit is too new for me to have much experience of repairing. 

The unit is a thermal store, but unlike Gledhill's other thermal stores the Gulfstream is self-powered by gas. It incorporates a modern, high-efficiency condensing boiler inside the casing which heats the store water.

Other than having a gas boiler built in, it is pretty similar to all the other Gledhill A-Class thermal stores. 

Like conventional hot water cylinders, a thermal store is a container filled with hot water but here the similarity ends. Once filled, the water in a thermal store never changes. Instead, the hot water stored in it is used to heat the tap water using a heat exchanger.  This allows the hot tap water to be delivered at full mains pressure, and is one of the primary benefits of installing a thermal store instead of a conventional hot water cylinder. For central heating, the hot store water is pumped directly around the radiators.

The Gledhill Gulfstream transfers heat into the tap water using a pump and an external 'plate heat exchanger'. A plate heat exchanger is a block of very thin stainless steel plates arranged so that cold mains water can flow through one set of spaces between the plates, and hot water from the thermal store core can flow through an alternate spaces. Heat transfers through the plates and heats the cold mains water on it's way to the hot tap.

Central heating is very simple in that the CH pump starts and circulates the thermal store water around the radiator circuits whenever the CH timer and room thermostat are both calling for heat.

 

Common problems:

As I mentioned above, this is a new(ish) model and I've not had time yet to write a list of common faults, although it is a very similar list to the problems that the 2000 suffers from.  

If you have a Gulfstream A'Class that needs attention I'm happy to attend but due to the known unreliability of the Gulfstream I'm only prepared to work on a 'no guarantee' basis. Neither parts nor labour will carry the one-year guarantee I normally offer and I'll ask to to sign a declaration agreeing to this. I suggest you consider replacing the Gulfstream instead of repairing it. The comments on this page are all my personal opinion.

 

Mike Bryant, AKA Mike the Boilerman

 

This page last updated 1st February 2010.