BAXI 615 15KW 600 SYSTEM 2 BOILER ONLY 7798687

Sale price£1,000 GBP
Only 9 units left

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BAXI 615 15KW 600 SYSTEM 2 BOILER ONLY 7798687


The Baxi 600 System 2 boiler is the perfect option when you need lots of hot water or have more than one bathroom.


7-10 Day Lead

The Baxi 615 System 2 Boiler is perfect for houses or buildings with more than one bathroom that need a high flow of hot water. The boiler is compact and lightweight, weighing only 28kg, and can fit into a 290mm deep cupboard. It comes with a seven-year parts and labour warranty, making it reliable and cost-effective for investment in any home or business. It is compatible with Baxi and Megaflo cylinders to give you the very best industry leading hot water performances.

Easy to install and operate, the boiler has an easy-to-read backlit LED screen, and simple twist knobs to change the water to your desired temperature. All models can also be manually converted from natural gas to LPG without having to purchase an extra accessory kit.

The boiler has an exceptional A rated certificate for hot water efficiency, saving you energy and money, and reducing your carbon footprint. It also features a stainless steel heat exchanger and built in pipes behind the facility, within the boiler casing.

Finally, you can have peace of mind during the winter months, the preheated siphonic condensate trap prevents freezing as the trap dissipates preheated condensate all at once, helping reduce engineer call-outs.

It is compatible with Baxi cylinders and the Megaflo Eco range and comes with a seven-year parts and labour warranty*.

Features & Benefits

  • Seven-year parts and labour warranty* for peace of mind

  • Compatible with Baxi uSense smart thermostat, so you can control it using an app on your phone

  • Pre-heated condensate trap to prevent freezing in winter - no more frozen condensate pipes!

  • Works with natural gas or LPG, without a conversion kit

  • Fits inside a standard kitchen cupboard

Techical Specs

  • Compact cupboard fit

  • Brass hydraulics block

  • Built-in stand-off frame

  • Certified OpenTherm

  • Simple hanging bracket

  • Certified to work with 20% hydrogen

  • Vertical sleeve recyclable packaging

  • Combined PrV with seperate drain

  • Colour-coded and removable wiring blocks

  • Pre-heated siphonic condensate trap

  • Easy-fill 2 permanent filling link


  • A: Boiler Width = 395mm

  • B: Boiler Height = 700mm

  • C: Boiler Depth = 285mm

  • D: Side Clearance = 2.5mm

  • E: Upper Clearance = 178mm

  • F: Lower Clearance = 150mm

  • G: Front Clearance= 5mm in operation (450mm for servicing)

User Guide - Downloadable file 

Technical Table   Baxi 615 System 2
Sales Code   7798687
Natural gas or LPG   Yes
Inlet supply pressure (natural gas) mbar (nominal) 20
Maximum Gas Rate (G20) Qmax m³ / hr 1.64
Heat Input CH kW (max) Gross (QnHs)  15.5
  kW (min) Gross (QnHs) 4.9
Heat Output CH (non-condensing) kW (Max) (Pn) 15
  kW (Min) (Pn) 4.8
Heat Output CH (condensing) kW (Max) (Pnc) 16.3
  kW (Min) (Pnc) 5.2
Heat Input domestic hot water (DHW) kW max gross (OnwHs)  N/A
Heat Output domestic hot water (DHW) kW max  N/A
Water heating efficiency class   A
Permanent live required   Yes 
External fuse rating (on connection board) Amps F0.5A L250VP
Pump overrun   Yes
Integral 'boiler only' frost thermostat   Yes
Maximum DHW flow rate (Delta T @35'C rise)  l/min N/A
Minimum DHW flow rate required   l/min 
Minimum operating DHW pressure required bar 0.5 
Integral expansion vessel Size (litres) 
Maximum capacity of the CH system Litres  100 
Integral automatic bypass   Yes 
Installer Lift Weight (kg) 28 


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