Up to 15% Savings on Gas Heating Bills

Introducing Endotherm, the multi award-winning energy saving heating additive. Professionally treated with dosing certificate provided.

Lasts for 7+ years provided it is not drained.

Typical return on investment in less than 1 year.

Compatible with new and existing gas boilers.

When EndoTherm is correctly dosed into your boiler and radiators, the surface tension of water is changed by over 60%. A reduction in surface tension improves the thermal contact area within the heating system. System water achieves improved thermal contact with radiators and heat is transferred more efficiently into rooms.

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How EndoTherm Works


EndoTherm creates improved conditions to allow boilers to operate more efficiently whilst being more reactive to changes in heat demand. EndoTherm has been installed into thousands of wet heating systems. Independent field and laboratory data confirm savings of up to 15% on those systems dosed with EndoTherm.

For several years Endotherm has been used for commercial applications with real world energy savings. Just like these large projects, domestic homes can also benefit considerably with a return on investment in less than 1 year with savings of up to 15% on gas heating bills.

Please be aware EndoTherm only works when diluted with the system water, should the system be drained down, so too will the EndoTherm additive and further treatment will be required.

With and without EndoTherm

ENERGY SAVING PACKAGE 1

£150.00 inc VAT

X2 500ml Genuine EndoTherm Energy Saving Additive.

Professionally treated with dosing certificate provided.

Lasts for at least 7 years provided it stays in the system.

X2 500ml bottles are suitable for most systems. Very large systems may require additional EndoTherm additives to achieve the correct concentration. Additional EndoTherm 500ml bottles are priced at £60.00 inc VAT.

Genuine EndoTherm additive supplied directly from the manufacturer. Please be wary of imitations and expired products online. We only use genuine and 'in-date' Endotherm products with claims backed by the manufacturer. We also include a dosing certificate providing proof of treatment.

ENERGY SAVING PACKAGE 2

£180.00 inc VAT

X2 500ml Genuine EndoTherm Energy Saving Additive.

1 Ltr Sentinel X100 Inhibitor.

Professionally treated with dosing certificate provided.

Lasts for at least 7 years provided it stays in the system.

Genuine EndoTherm additive supplied directly from the manufacturer. Please be wary of imitations and expired products online. We only use genuine and 'in-date' Endotherm products with claims backed by the manufacturer. We also include a dosing certificate providing proof of treatment.

X2 500ml bottles are suitable for most systems. Very large systems may require additional EndoTherm additives to achieve the correct concentration. Additional EndoTherm 500ml bottles are priced at £60.00 inc VAT.

In addition to Endotherm we will also treat the system with Sentinel X100 Inhibitor. Providing protection for clean central heating systems against limescale and corrosion. Sentinel X100 Inhibitor will extend the life of the system, ensuring maximum efficiency and minimising fuel usage.

ENERGY SAVING PACKAGE 3

£295.00 inc VAT

1 Ltr Sentinel X800 Fast Acting Cleaner.

Chemical mains pressure system flush.

X2 500ml Genuine EndoTherm Energy Saving Additive.

1 Ltr Sentinel X100 Inhibitor.

Professionally treated with dosing certificate provided.

Lasts for at least 7 years provided it stays in the system.

Genuine EndoTherm additive supplied directly from the manufacturer. Please be wary of imitations and expired products online. We only use genuine and 'in-date' Endotherm products with claims backed by the manufacturer. We also include a dosing certificate providing proof of treatment.

X2 500ml bottles are suitable for most systems. Very large systems may require additional EndoTherm additives to achieve the correct concentration. Additional EndoTherm 500ml bottles are priced at £60.00 inc VAT.

Prior to Endotherm dosing we will treat the system with Sentinel X800 Cleaner and perform a chemical mains pressure system flush. Sentinel X800 Fast Acting Cleaner eliminates magnetite and limescale deposits from heat exchangers, radiators and pipework. It restores an even distribution of heat in existing installations, for a better heated home and reduced energy bills. Once cleansed, the system will be drained and refilled with clean water, ready for dosing of Endotherm.

In addition to Endotherm we will also treat the system with Sentinel X100 Inhibitor. Providing protection for clean central heating systems against limescale and corrosion. Sentinel X100 Inhibitor will extend the life of the system, ensuring maximum efficiency and minimising fuel usage.

ENERGY SAVING PACKAGE 4

£495.00 inc VAT

1 Ltr Sentinel X800 Fast Acting Cleaner.

Powerflush of up to 12 radiators.

X2 500ml Genuine EndoTherm Energy Saving Additive.

1 Ltr Sentinel X100 Inhibitor.

Professionally treated with dosing certificate provided.

Lasts for at least 7 years provided it stays in the system.

Genuine EndoTherm additive supplied directly from the manufacturer. Please be wary of imitations and expired products online. We only use genuine and 'in-date' Endotherm products with claims backed by the manufacturer. We also include a dosing certificate providing proof of treatment.

X2 500ml bottles are suitable for most systems. Very large systems may require additional EndoTherm additives to achieve the correct concentration. Additional EndoTherm 500ml bottles are priced at £60.00 inc VAT.

Prior to Endotherm dosing, we will treat the system with Sentinel X800 Cleaner. Sentinel X800 Fast Acting Cleaner eliminates magnetite and limescale deposits from heat exchangers, radiators and pipework. It restores an even distribution of heat in existing installations, for a better heated home and reduced energy bills. Once cleansed, the system will be drained and refilled with clean water, ready for dosing of Endotherm.

In addition to Endotherm we will also treat the system with Sentinel X100 Inhibitor. Providing protection for clean central heating systems against limescale and corrosion. Sentinel X100 Inhibitor will extend the life of the system, ensuring maximum efficiency and minimising fuel usage.

Prior to Endotherm dosing, we will powerflush each radiator (up to 12) with Sentinel X800 Cleaner. Using our specialist powerflush machine, we will perform a deep, intense cleanse of your heating system and boiler. Benefits of a powerflush include: more even heat distribution throughout the property, improved overall energy savings, lower heating bills, increased system reliability and extended system life.

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Contact Boilers Direct

or telephone using the numbers below.

Scarborough: 01723 624111 | Bridlington: 01262 310222 | Whitby: 01947 469333

Boilers Direct are qualified gas engineers serving Scarborough, Filey, Driffield, Bridlington and Whitby.

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