The Ultimizer water jacket sits above the brick line – not against the fire. This eliminates ash line corrosion and means that fuel is
completely burnt. There is considerably less ash. Other brands of water jackets sit against the fire and this takes away valuable heat prematurely, and bridging of fuel becomes a problem.

Make cleaning out ash easy. Just rock the grates with the handle. The shaker plates are manufactured from North American 3/4” plate steel – not poorer quality imported cast iron which doesn’t last.

Multi-layer insulated fire door with a heavy-duty adjustable handle and superior, high-density silicone-enhanced gaskets

Allows easy access to the fully water-cooled quad-pass heat exchanger. Only minimal cleaning is necessary due to the refractory lining and high-temperature burn. Most of the smoke has already been burnt, so creosote build-up is greatly reduced

The Last Boiler You Need to Buy. Not a throw-away design as so many products are these days.
The heavy-duty refractory brick, which gives the Ultimizer the ability to burn hot and clean, also safeguards against ash line corrosion. This in turn means that just the top half of the boiler can be easily replaced at a fraction of the cost of a complete boiler. If you ever need to rebuild, the entire fire pot and water jacket can be removed by simply unbolting the top section from the bottom section just above the bricks. The new top section then bolts into place. In less than half a day, with no welding required, you can have a fully rebuilt boiler.