Frozen Condensate Pipe PDF Print E-mail


Whilst this winter (2011/12) has proved to be relatively mild, during the last two winters the UK experience some extremely cold weather with prolonged cold spells and temperatures as low as -20°C. Where condensate pipes on high efficiency had been installed externally, for some or all of their length, they could become frozen, causing the boiler to shutdown. Boiler manufacturers and heating engineers experienced a massive increase in calls – all associated with frozen condensate drains. Manufacturers even resorted to recorded messages to advise customers on what to do.

Choosing your new boiler

Solaris work with a range of leading manufacturers of high efficiency condensing boilers and Combi boilers. The boilers are installed by a carefully selected team of Corgi registered plumbers and heating engineers with many years of condensing boilers and combi boilers installations and service experience.

Our Corgi registered plumbers and heating engineers can help you choose and design the most appropriate and cost effective boiler and central heating solution for your home.

Our Corgi registered engineers are experienced in High Efficiency boilers repair and installations of all the leading brands of Combi boilers and condensing boilers and can help you through the process.

Boiler FAQ's PDF Print E-mail

What Type and What Size of Boiler Do I Need?

Calculating the size of the required boiler needs to be done carefully, taking into account the size and the layout of the property, the number of rooms and bathrooms, the profile of hot water usage and many other parameters. Your plumber or heating engineer will be able to calculate accurately what type and size of boiler you actually need to install.

Combi Boilers PDF Print E-mail

Combi Boilersariston_clas_heboiler

Combi boilers are designed to heat up the hot water instantly, as well as provide heat for the central heating system. There is no feed tank and no storage cylinder is needed making the installation of Combi boiler relatively simple and cheap. Since there is no hot water storage cylinder, the Combi boiler eliminates the need to heat up the cylinder in order to keep it at a steady temperature for domestic hot water needs.



Combi Boilers Applications

Combi boilers are more suitable for relatively small houses or flats, where the demand for hot water isn't great. The boiler is limited to the amount of hot water it can supply, and in effect when hot water is being drawn for domestic use (e.g. shower, kitchen), there is no heating going into the radiators of the central heating system.

How does a Combi Boiler Work?

Here is a typical description of the operation of a Combi Boiler:

  1. Upon a signal from the room thermostat for the boiler to fire up the central heating system, the pump inside the boiler fires up. The water starts flowing passing through a narrow gap in the pipe (“venturi effect”) creating a pressure differential and causing the gas valve to open.
  2. Gas is ignited in the main burner
  3. The heat exchanger holds a limited amount of water, which is rapidly heated up, circulating around the boiler through the heat exchanger. Any expansion of the water is absorbed by the sealed expansion vessel.
  4. When the water temperature reaches 60c the thermostatic element expands, the hot water system valve closes and the heating system valve opens, which allows water to flow to the central heating system.

A similar operations happens upon request for domestic hot water, but rather the valves operate in opposite directions, letting the water pass through to the domestic hot water circuit rather than the central heating system.

Leading UK Boiler Manufacturers

Solaris can install a wide range of Combi boiler brands, including:

  • BAXI

- Baxi Platinum Combi HE A

- Baxi Duo-tec Combi HE A

- Baxi Combi 105 HE

  • Potterton Boilers

- Potterton Promax Combi HE Plus A

- Potterton Heatmax Combi HE

- Potterton Perfoma Combi

- Potterton Gold Combi HE A

  • Vaillant

- ecoTEC exclusive 832 & 838

- ecoTEC plus 937 (power-store combi)

- ecoTEC plus 824, 831 & 837

- ecoTEC pro 24 & 28

  • Worcester Bosch Boilers

- Greenstar CDi

- Greenstar Si

- Greenstar Junior

- Greenstar Highflow CDi

  • Ferroli

- maXima 35 C

- Optimax HE 31 C

- Optimax HE 38 C

  • Viessmann

- Vitodens 100-W

- Vitodens 200-W

- Vitodens 333-F

  • Biasi


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