Biasi Advance Plus 7 35 - a combi boiler, system boiler or regular boiler?

Suitable for a house or a flat, the Biasi Advance Plus 7 35 combi boiler is worth considering if you want a combi boiler.

Traditional boilers have one or two tanks - one holds hot water to keep it warm and the other water for later heating. Because UK residential property is among some of the smallest in the world, manufacturers introduced combi boilers and the heat pumps that go in them in the 1970s to reduce the amount of space boilers needed to take up.

The hot water needed for your radiators and taps is available on demand when you have a combi boiler. Combi boilers use technology located within the boiler to heat cold water, which it draws from the mains, and to distribute hot water where it's needed around your home.

A combi boiler, however, has the disadvantage of a maximum capacity for the amount of water it can heat. The result is that if someone uses the shower while another uses a hot water tap simultaneously, the amount of water reaching each point falls, causing water pressure to drop.

Is the Biasi Advance Plus 7 35 combi boiler a suitable choice for my property?

Selecting the right boiler for your property means selecting a boiler that is the right "size". And, by size, we don't mean how big it is, we mean how powerful it is - its "output".

The output rate tells you how much energy your boiler has to use to provide you and your family with hot water and central heating. A higher output rate means that it can heat greater volumes of water.

Please be aware, though - if you choose a boiler whose output is too low, the water in your radiators and coming from your taps may not be warm enough. Conversely, if you choose a boiler with too high an output, you'll pay more for gas than is necessary.

The Biasi Advance Plus 7 35 combi boiler has an output level of 35 kW, so which types of property would it be appropriate for?

An experienced Gas Safe boiler installer would recommend that this Biasi Advance Plus 7 35 Combi boiler would be a suitable installation choice for larger properties including detached homes with 15 or more radiators and two or more bathrooms.

Please remember too that all combi boilers draw water from the mains - they have no storage tanks. Combis heat the water from the mains on demand and then send it to wherever it's needed in the house, like a radiator, a bathroom or a kitchen.

The speed at which it can do this is called the "flow rate", which is measured in litres per minute. If you have a lot of radiators and bathrooms in your home and multiple people are regularly trying to use the hot water at one time, such as in the morning or evening, you'll need a combi with a high flow rate. This Biasi Advance Plus 7 35 Combi boiler's flow rate is TBCl/m.

However, it's not that simple. Combis can only draw water from the mains at the speed it's delivered. If the flow rate of the local water supply is 11l/m, you shouldn't purchase a boiler with a flow rate of 17l/m because it will never be able to use that extra capacity.

When our engineer comes out to quote you, they may recommend that you choose a heat only boiler or system boiler instead if your family's demand for hot water is higher than normal.

Biasi Advance Plus 7 35 size

The Biasi Advance Plus 7 35 has the following dimensions - TBC mm high, TBC mm wide, and TBC mm deep.

Is the Biasi Advance Plus 7 35 non-condensing or condensing?

We recommend that, if possible, you select one of the very latest condensing gas boilers on the market like the Biasi Advance Plus 7 35.

Condensing boilers are better for the environment because they capture and recycle the heat still present in flue exhaust gases and water vapour condensation for re-use, meaning lower greenhouse gas emissions.

They're also a lot cheaper to run meaning that, if you're replacing a very old and inefficient boiler, the savings on your gas bill over 5-10 years add up to more than you pay for the boiler itself.

Is the Biasi Advance Plus 7 35 combi good for the environment?

With more and more people concerned about climate change, how we heat our homes and the damage it does to the environment is increasingly being questioned by British homeowners.

Approximately 14% of the UK's greenhouse gas production is caused by our central heating systems. The gas boilers in larger urban areas of Britain are mainly responsible for emissions of toxic nitrogen dioxide.

Would choosing the Biasi Advance Plus 7 35 combi be an environmentally-friendly choice? If so, let's look at its performance figures.

Boilers manufactured after April 2018 in the UK must achieve an "A" on the SEDBUK grading system as well as score a minimum of 92% on a separate energy efficiency test. Prior to that, the minimum was 88% - boilers rated at 88% and 89% were given a “B” rating (90% and higher were given an "A").

An energy efficiency rating describes how much energy the boiler uses and how much it wastes when in use.

The Biasi Advance Plus 7 35 was awarded an efficiency rating of 92% with a SEDBUK grading of "A".

What length of warranty does the Biasi Advance Plus 7 35 come with?

Parts and labour charges incurred during a repair on the Biasi Biasi Advance Plus 7 35 boiler are covered by a 7 year warranty.