The Vaillant 438 Plus 38kw Heat Only Boiler Review

The 438 is Vaillant’s most powerful open-vent boiler model and is the ideal solution to heat a home with a large heat load and hot water demand.

Call Now On 03456 474747 or use the form and we will get straight back to you.

Hassle Free Boilers can help calculate your heat load making choosing the right boiler size much easier. This boiler is one of the most efficient on the market with a tested heating-efficiency of 89.2% as rated by SAP.

Features and Benefits

  • Ultra-efficient 89.2% Efficiency Rating SAP
  • A-rated Boiler Could Mean £200 + Gas Bill Savings
  • Reduced Carbon Footprint By Up To 1,265 kg CO2
  • Push-Button Intuitive Programming
  • Vaillant Premium Components Mean Greater Durability
  • 5 Year Standard Warranty
  • Lifetime Guarantee with our HFB Cover Plan

How It Works

Vaillant have clearly been hard at work with their new range of open-vent boiler and the 38 kw, the largest in their range, is no exception. Open vent systems (also called heat only) usually have a hot water cylinder located in the airing cupboard and a cold water tank in the loft.

Because the 438 is ‘A-rated’ you can expect gas bill savings of as much as £225 each year and carbon savings of 1,265 kg of CO2 each & every year for the remainder of the life of the boiler, when compared to not upgrading.

What You Need to Know

The Quiet Mark is testimony to how quietly this boiler runs, which is in part due to the innovative 2 stage pump which is very quiet and also due to the quality of the components Vaillant use. This is a compact and stylish boiler that fits neatly into any kitchen setting and uses simple, intuitive programmable controls and timers Hassle Free Boilers can install the 38 kw within 1-2 working days and it comes with a standard 5 year warranty. The 2 stage frost protection makes sure the boiler is dependable all year round and works when you need it most. If you’re looking to upgrade your open vent system with a boiler that is efficient, dependable and easy to set up and change the controls, and your house has a large heat load then look no further then the 38 kw from Vaillant.

Vaillant combine the best of German efficiency, and British engineering and have been in the heating business for over 100 years. We’ve chosen to work closely with Vaillant, exclusively offering the range of boilers to our pay monthly customers. This is because the boilers have proved so reliable and have performed great over the long-term. Our partnership means Vaillant provide us with the boilers at a great price and we can pass those savings on to you. We only hire local, but full time engineers to install as well. Please get in contact if you are wondering which model is the best match for your home. Our engineers will help you decide by running through the heat calculations of your home and looking at you hot water usage habits. View Vaillant’s range of combi boilers starting with the pro 24kw model here.