Description

De Dietrich Vivadens MCR 24/29 MI Wall-Hung Condensing Combi Boiler

The De Dietrich Vivadens MCR 24/29 MI is a compact, high-efficiency wall-hung condensing gas boiler designed to deliver optimal central heating and instant domestic hot water (DHW). With a 24 kW rating for space heating and up to 29 kW for hot water production, this next-generation combi boiler combines low energy consumption, whisper-quiet operation, and long-term durability.

Key Technical Specifications

Technical Parameter	Specification / Value
Boiler Type	Wall-hung gas condensing combi (Heating + Instant DHW)
Nominal Heat Output ( $P_{rated}$ )	24 kW
Useful Output at High Temp (80/60 °C)	2.9 – 24.0 kW
Useful Output at Low Temp (50/30 °C)	3.2 – 26.1 kW
Useful Efficiency at 30% Partial Load ( $\eta_1$ )	98.8%
Seasonal Space Heating Efficiency ( $\eta_s$ )	94%
DHW Energy Efficiency ( $\eta_{wh}$ )	90% (Declared Load Profile: XL)
Modulation Range	10% to 100%
Nitrogen Oxide ( $NO_x$ ) Emissions	20 mg/kWh
Natural Gas G20 Consumption (min / max)	0.32 / 3.17 m³/h
Sound Power Level (Indoor $L_{WA}$ )	50 dB(A)
Expansion Vessel Capacity	8 Liters
Net Weight (empty / filled)	29.0 kg / 31.5 kg

Key Features & Benefits

E-PILOT Smart Control System

User-Friendly Interface: Intuitive control panel featuring clear text navigation and quick switching between operating modes.
Real-Time Diagnostics: Permanent digital display of system water pressure.
Smart Connectivity: Fully compatible with smart room thermostats and cloud-connected sensors, eliminating the need for an external outdoor sensor.
Energy Metering: Built-in energy consumption monitoring for maximum cost control.

Next-Generation Combustion & Eco Readiness

Ultra-Wide Modulation (10% to 100%): Automatically adjusts heat output to match your home's exact heating demand, significantly reducing gas consumption and wear on internal components.
Hydrogen Ready (20% H2): Future-proofed to run on natural gas blended with up to 20% Hydrogen.
Quiet & Compact: Soundproofed casing for near-silent operation, integrated flue gas non-return valve, and a space-saving design ideal for tight installations.

Heavy-Duty Hydraulic Construction

Stainless Steel Heat Exchanger: Monocoil stainless steel heat exchanger ensures superior corrosion resistance and high thermal transfer.
Brass Hydroblock: Built with a full brass hydraulic assembly and copper internal piping for maximum longevity.