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Vaillant ecoTEC Plus 836 36kW Combi Boiler | 10036017 | ErP A
Regular price
£2,495.00
Inc. VAT
£2,079.17
Exc. VAT
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The Vaillant ecoTEC plus 836 is a 36 kW natural gas combination boiler that supplies central heating and instantaneous mains-pressure hot water from a single wall-hung unit, with no hot water cylinder and no loft tanks required. Hand-built in Vaillant's award-winning Derbyshire manufacturing plant, it combines a stainless steel heat exchanger with a ErP A/A energy label rating for heating and hot water and a 94% ErP efficiency figure.
Hot water output is strong for a combi of this size: 17.0 l/min at a 30 K temperature rise (14.6 l/min at 35 K), with a 35 to 65 °C adjustable outlet temperature. On the heating side, the new IoniDETECT combustion monitoring helps the boiler reach a modulation range of up to 1:10, so it can throttle down to as little as 3.7 kW at 80/60 °C (up to 29.9 kW) and match the heat demand of the property more closely.
The boiler is smart home ready. Paired with the myVAILLANT connect internet gateway (sold separately), it enables app control, smart home integration and remote appliance care, and it works with Vaillant eBUS controls including sensoCOMFORT, sensoHOME and sensoROOM. For installers, a semi-touch interface with a guided installation assistant, automatic LPG conversion with no additional parts, a supplied filling loop and the familiar ecoTEC plus footprint, flue position and pipe connections make fitting and like-for-like replacement quicker and simpler.
36 kW
DHW rating (30/36 model)
17.0 l/min
Hot water at ΔT 30 K
94%
ErP efficiency
A / A
ErP heating / DHW class
1:10
Modulation range (up to)
47 dB(A)
ErP sound power
Safety and regulatory information
Installation, commissioning and servicing must be carried out by a Gas Safe registered engineer in line with the manufacturer's instructions and current Building Regulations. The Benchmark Commissioning Checklist must be completed; failure to install and commission to the instructions invalidates the guarantee. This boiler is room-sealed only (C13, C33, C43, C53) and is not suitable for outdoor installation. In a room containing a bath or shower it must be installed in zone 2 or 3 only (BS 7671), and a terminal guard is required where the flue terminal is less than 2.0 m from the ground or could be contacted or damaged. Electrical work must comply with the IET Wiring Regulations (BS 7671).
Compatibility and what is not included
This listing is for the boiler only. The flue, terminal and any plume management kit are sold separately, and only original Vaillant air/flue components may be used, as the boiler is system-certified with them. The supplied wall fixings are suitable only for concrete and solid brick walls, and the wall or mounting must carry a load of at least 100 kg. Flush the heating system thoroughly before fitting; a system filter and mains water treatment are on Vaillant's pre-commissioning checklist for combi installations. Do not use this boiler with a directly connected wall-hung hot water cylinder. The myVAILLANT connect gateway is required for app connectivity and is not compatible with timeSWITCH 150 or timeSWITCH 160.
Guarantee
A 10-year guarantee is available when the boiler is registered through Vaillant Advance and installed with a Vaillant Boiler Protection Kit. To maintain the guarantee, the boiler must be serviced annually by a suitably qualified competent person.
Key Features
IoniDETECT combustion monitoring
Intelligent gas combustion monitoring lets the boiler reach a wider modulation range of up to 1:10 for greater system efficiency.
Smart home ready
Works with the myVAILLANT connect gateway for app control, smart home integration and remote appliance care and support.
Semi-touch interface
A guided installation assistant and easy-to-follow navigation make first-time set-up and commissioning straightforward.
Automatic LPG conversion
Switch from natural gas to LPG in minutes through the interface, with no additional parts required (G31 operation, category II2H3P).
Like-for-like replacement
Retains the familiar ecoTEC plus case size, footprint, flue position and pipe connections, with a refined internal layout and easy access to all major components.
LINbus and Sitherm Pro
LINbus improves flow rate and pressure differential readings via the internal pump, while Sitherm Pro adaptive combustion control removes manual gas-air ratio adjustment within a gas family.
Technical Specification
Frequently Asked Questions
BTU & WATT Calculator
Room Dimensions
Room Type
Living Room
Bedroom
Kitchen
Bathroom
Conservatory
Hallway
Glazing Type
Single Glazed
Double Glazed
Triple Glazed
External Walls
0 Wall
1 Wall
2 Walls
3 Walls
4 Walls
Insulation Level
Poor
Average
Good (New Build)
Required Heating
0
Watts
0
BTUs
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