Lennox Warm Air Heating Systems and Combi Warm Air

Although Warm Air Heating Systems have arguably fallen out of fashion in new properties, they have been one of the most efficient kinds of heating on offer over the past 4 decades. In fact, the efficiency of traditional warm air heating has only been matched by radiator based systems in the last decade - and here at Hot Water and Central Heating we can offer advice based on our years of experience in working with warm air central heating . We offer two main solutions, the Gas Warm Air heater, and and the Warm Air Combi.
NB: Those on oil fired warm air should go straight to the Warm Air Combi section.

Gas Warm Air heaters

There is only one manufacturer available the United Kingdom with a track record of over 10 years when it comes to delivering a modern, highly efficient GAS condensing warm air heater today. And, the name is Lennox. We recommend and install this model, because it is from the market leading company from the biggest warm air market, the USA.  Tried, tested, proved, their G61MPVT is unique; for starters, it works upside down, so any configuration can be accommodated.

In late 2013 Johnson & Starley, the sole remaining UK  manufacturer introduced a range of condensing warm air heaters in their first attempt to rival those supplied by Lennox.

You can experience almost instant output with a warm air central heating system.

The present-day warm air heaters enjoy considerable technical superiority over their predecessors. The contemporary models come equipped with the electronically controlled fan speeds and temperature regulation, thereby replacing the traditional on/off nature of old variants. So, the boilers of today operate in a subtler manner. These improved features lead to greater comfort and economic benefits for the householders when they think of upgrading.

As mentioned earlier, we recommend and install Lennox condensing warm air units that offer up to 94% efficiency.

Being a USA based manufacturer, Lennox competes in a huge market for warm air heating there, which does not exist in the UK. In the United States, the competing manufacturers are still making large investments into the development of products. Some UK homes still have Lennox heaters that date back to the 60s and 70s. In other words, Lennox products have shown that they are very well made and dependable.


We supplWarm Air Central Heating Systems Installation in Tonbridgey the high quality US-made Trion air filtration systems coupled with these heaters for the ultimate system for homeowners.  The Trion air filtration removes particulates from the house, particularly welcomed by those with respiratory ailments.

In comparison to the outdated UK-made warm air heating systems that are for sale even today, Lennox will consume significantly less gas and to your benefit, make considerable electrical savings as well. One of our clients believes that their gas consumption has gone down by almost 50% since the replacement of J&S HiSpec System ET units with a pair of condensing Lennox units a couple of years ago.

In the USA, air conditioning and warm air are frequently combined. The same can be offered by us here in the UK as well, employing a G61 and a Lennox air con unit, running through your existing ducts.

NB: If you want to incorporate radiators into your warm air equipped house or mains pressure water systems, or have an oil fired or electric warm air system, take a look at our warm air combi solution below.

The Warm Air Combi:

Many of our customers have an antiquated old warm air unit and would now like the advantages of a combination boiler in 2016;

  • instant hot water
  • mains cold and hot water pressure to all outlets
  • economic hot water water production
  • no hot water cylinder needed

But don’t want radiators to disfigure their home………

For these, we offer the Warm Air Combi.  It comprises just two boxes, a simple warm air unit and a wall mounted combination boiler.

Simple, safe, convenient and economical.  It looks like this;

A simple gas or oil boiler, such as a Worcester Bosch wall hung unit;

New Worcester-Bosch 25Si Compact in position

Worcester-Bosch 25Si Compact

And one of our air handling units;

We fitted a new outlet, this time to the supply duct rather than the 'return air' suction side.  This would make the kitchen warm for once.

Hot Water & Central Heating Warm Air Combi

Warm Air Combi options;

  • 20, 30 and 40Kw warm air capability
  • Oil, Gas and LPG versions
  • Can add an unvented (Megaflo) hot water system for larger applications
  • Can be partnered with radiators too!
  • Can be controlled via Evohome

Ask us for details.

You can find examples of our Warm Air Combi installations here;

Multicalor Warm Air

Customer Testimonials

Excellent Work

Excellent work , the workers were very efficient, considerate and tidy. They worked with the least disruption possible for an elderly lady. Any unexpected problem was dealt with safely and professionally. The finished heating is to a high standard. K.T. Kent

Jennie 05/05/2017