Electric Boiler Ratings part 3, Reviews of the EFM, EHC, Electro Boiler, Evan, Gabarron, Glary, Heatrae Sadia, and IVT brands



The EB4 units are available in five models from 10-30 kw. The elements in the units are staged where a 5kw element is energized after each 60 seconds of operation. This allows the units to closely match the required heat output but it would be better if there was a longer delay between stages. The boiler includes a built-in circulator pump and air vent for quick and easy installation. The warranty on the units is not as good as many other brands.

EHC- electric-heatingcompany.co.uk -<1* 

This brand is made and sold in the U.K. The FUSION range units contain the pump, auto air vent, expansion vessel, and a magnetic filter.They feature six stage heating for energy savings and a copper heat exchanger. They are available in sizes from 6 to 14.4kw. The SLIMJIM boilers are compact space saving units with much of the same features. The guarantee on this brand is not very good when compared to other brands.

ELECTRO BOILER---electromn.com-----3*

This brand offers a variety of units including wall-mounted or floor standing models. The WARMFLO control stages the elements to more closely match the heat output to the required load. These boilers are backed by a good warranty.


This brand is a part of NIBE ENERGY SYSTEMS and is made and sold in Russia. The C1 range offers a variety of sizes to match the heating needs of the home. The WARMOS IV has staged elements but they are staged based on time instead of temperature. Their website is not much help and the warranty on the units is not very good.


These boilers are available for central heating only or for heating/domestic hot water production. They feature electronic modulating controls and are wall mounted. Their website is not much help and does not have a stated guarantee for the units. The boilers are made in Spain and sold throughout Europe.


This brand is made in China and is available in three sizes. They are wall-hung units but their website is not much help and does not have a stated guarantee.

HEATRAE SADIA--heatraesadia.com--<1* 

This brand is a part of BDR THERMEA and is made in the U.K. They are available worldwide. The ELECTROMAX units are a heating boiler and domestic hot water heater all in one unit. They feature a stainless steel dhw tank and a programmable room thermostat. The AMPTEC units are designed for the replacement market and can be used with conventional radiators or underfloor systems. The warranty is not as good as many other brands.


The IVT 290 boilers feature stainless steel construction for durability. They are available in two sizes and are for heating and DHW production. The brand is a part of BOSCH THERMOTECHNOLOGY GROUP and is available in Europe. Their website is not much help and does not have a stated guarantee for their products.