Name: Vaillant ecoTEC intro VUW 24/28 AS/2-1 Condensing Boiler | Termix
Brand: Vaillant
SKU: 8000021879

Description

Vaillant ecoTEC intro VUW 24/28 AS/2-1 Wall-Mounted Condensing Combi Boiler – 24 kW Heating, 28 kW Hot Water, Stainless Steel Heat Exchanger, Touch Screen Interface, Class A Efficiency

Commercial Product Description:

The Vaillant ecoTEC intro VUW 24/28 AS/2-1 condensing gas boiler is the ultimate professional-grade solution engineered by Vaillant to deliver signature German engineering, high-efficiency performance, and exceptional space savings directly to modern apartments and medium-sized family homes. Featuring a sleek, space-saving wall-mounted layout with an incredibly shallow installation depth, the ecoTEC intro redefines minimalist utility room aesthetics. It seamlessly mounts inside standard kitchen cabinetry, narrow pantry closets, or compact recesses, bringing premium central heating and instant Domestic Hot Water (DHW) production to properties with tight floor space.

This advanced combi unit is smartly calibrated with asymmetric power outputs, delivering a highly focused 24 kW for your central heating circuit and automatically ramping up to a robust 28 kW during domestic hot water consumption. This ensures an instantaneous, high-volume flow rate at perfectly stabilized temperatures, preventing cold-water bursts during your shower. At its core, the boiler integrates a premium stainless steel (inox) main heat exchanger designed to resist oxidative corrosion, minimize mechanical fatigue, and extend operational lifespans. Supported by a fully modulating high-efficiency pump, the ecoTEC intro continuously throttles its burner output to match your home’s exact real-time thermal load, keeping gas bills low and household comfort high.

✨ 3. Technical Advantages and Top Features

Asymmetric Power Calibration (24/28 kW): Optimally balanced to provide 24 kW for efficient home space heating while driving up to 28 kW on demand for premium hot water delivery.
Ultra-Compact Wall-Mounted Casing: One of the most lightweight and space-saving condensing boilers in Vaillant’s elite lineup, offering effortless handling and elegant aesthetic integration.
Stainless Steel Heat Exchanger: A premium, heavy-duty component engineered to prevent mineral scale build-up, maintain optimal thermal conductivity, and reduce runtime maintenance costs.
State-of-the-Art Touch Screen Interface: A modern digital LCD display featuring intuitive touch controls, delivering clear scannability for setting target comfort zones and running automated diagnostic evaluations.
Smart Continuously Modulating Burner: Modulates gas and electricity consumption down fluids to eliminate cycling waste, guaranteeing ultra-quiet performance and lower seasonal carbon emissions.
Simplified Front-Access Servicing: Intelligently engineered internal chassis layout allows heating technicians to access all critical hydraulic components straight from the front panel during routine revisions.

📊 4. Technical Specifications Table: Vaillant ecoTEC intro VUW 24/28 AS/2-1

All mechanical metrics listed below correspond directly to official manufacturer engineering parameters:

Technical Parameter	Unit	Specification Value
Heating Power Range ( $P$ ) at 50/30 °C (G20)	kW	4.5 - 25.9
Heating Power Range ( $P$ ) at 75/55 °C (G20)	kW	4.0 - 23.9
Minimum Heating Thermal Load (G20)	kW	6.0
Maximum DHW / Boiler Reheating Thermal Load ( $Q_{max}$ )	kW	28.0
Seasonal Space Heating Efficiency Class	-	Class A
Maximum Central Heating Flow Temperature	°C	75
Heating Flow Temperature Adjustment Range	°C	30 - 80
Maximum Permissible System Overpressure	bar	3.0
Nominal Water Flow Rate ( $\Delta T = 20\text{ K}$ )	l/h	797
Approx. Condensate Volume at 50/30 °C ( $\text{pH } 3.5 \dots 4.0$ )	l/h	1.91
Expansion Vessel Volume	L	8
DHW Efficiency Class / Load Profile	-	Class A / XL
Minimum Cold Water Starting Flow Rate	l/min	1.7
Specific DHW Flow Rate ( $D$ ) ( $\Delta T = 30\text{ K}$ , EN 13203)	l/min	13.4
Maximum Permissible Water Circuit Pressure	bar	10
Minimum Required Inlet Supply Pressure	bar	0.30
Domestic Hot Water Outlet Temperature Range	°C	35 - 60
Gas Supply Pipe Interface Connection	inch	1/2"
Central Heating Flow / Return Connections	inch	3/4"
Equipment Dimensions ( $\text{Width} \times \text{Depth} \times \text{Height}$ )	mm	400 x 270 x 626
Approx. Net Weight (Dry, Unfilled)	kg	27.4
Electrical Power Interface Requirement	V / Hz	230 / 50

🛠️ Specialist's Technical Advice for Low-Cost Operation:

💡 Expert Recommendation: Modern gas condensing technology achieves its optimal thermal efficiency when operating on low-temperature profiles (e.g., configuring your central heating flow temperature to a maximum of 50°C). The Vaillant ecoTEC intro VUW 24/28 AS/2-1 performs at peak cost-savings when paired directly with radiant underfloor heating arrays or oversized radiators specifically calibrated for condensing cycles.

⚠️ Important Installation Note: Because this system continuously reclaims latent heat energy, a dedicated connection line must be set up by your plumbing team to route the acidic condensate safely into your home's wastewater drain. To protect the premium stainless steel heat exchanger and internal modulating pump from circulating metallic scale, rust flakes, or black magnetite, it is legally and technically mandatory to install a high-performance magnetic sludge filter on the main heating return line, alongside a sediment pre-filter on your main cold-water input line.

🏠 Drastically optimize your household heating bills without surrendering premium square footage inside your property! The Vaillant ecoTEC intro VUW 24/28 AS/2-1 condensing gas boiler seamlessly fuses world-renowned Vaillant build quality with a space-saving, modern design. Rely on its heavy-duty stainless steel core and advanced responsive touch screen controls to maintain absolute climate comfort while lowering your gas consumption month after month. Reminder: Add a high-capacity magnetic return filter and a code-compliant flue kit to your order for a complete, certified installation. Secure yours today on Termix.ro to enjoy competitive pricing, an official Vaillant manufacturer warranty, and rapid shipping straight from our stock inventory! 🛒