Condensing boiler · New equipmentCointra Superlative Supra 28C

Cointra Superlative Supra 28C boiler

VAT includedIn stock

The Cointra Superlative Supra 28 C offers 4.7–24 kW of heating at 80/60 °C and 28 kW useful for domestic hot water. Its 16.1 l/min of DHW at ΔT 25 °C increases the capacity compared to the 24 C without taking up more space: both have a body of 700 × 420 × 250 mm and weigh 27 kg. The primary heat exchanger is made of stainless steel. The unit provides instant DHW and has an 8-liter heating expansion vessel, different from a sanitary accumulator. Eco mode prevents preheating; Comfort mode keeps the interior ready to reduce waiting time when turning on the tap. Boiler only, without flue kit or installation. VAT and mainland shipping included.

Useful heating power (80/60 °C): 4.7–24 kW
Domestic hot water flow rate (ΔT 25 °C): 16.1 l/min
Dimensions (height × width × depth): 700 × 420 × 250 mm

Condensing boiler

The model, at a glance

Cointra Supra 28 C: heating from 4.7 to 24 kW, domestic hot water of 16.1 l/min at ΔT 25 °C and 25 cm deep. Without storage water heater.

Useful heating power (80/60 °C): 4.7–24 kW
Domestic hot water flow rate (ΔT 25 °C): 16.1 l/min
Dimensions (height × width × depth): 700 × 420 × 250 mm

Read the full description and what it includes.

The primary heat exchanger is made of stainless steel. The unit provides instantaneous domestic hot water and has an 8-liter heating expansion vessel, different from a sanitary accumulator. Eco mode prevents preheating; Comfort mode keeps the interior ready to reduce waiting time when opening the tap.

At 50/30 °C, its heating range is from 5.2 to 26 kW. The choice between the 24 C and the 34 C should take into account both the thermal demand and the water consumed at the same time: two baths do not necessarily equate to two simultaneous showers. The Connect Smart WiFi control is optional, not an accessory that is assumed to be included.

What is included in the purchase?

Boiler only, without flue kit or installation.

Price including VAT and shipping to mainland Spain. Installation, adaptations, and commissioning are valued separately.

Consult the manufacturer's PDFs ↓

Guide

What to check before installing this boiler

The choice of equipment does not replace the inspection of the installation by a qualified professional.

Confirm the model and commercial reference, the type of gas, and the supply configuration in the manufacturer's documentation.
Ask a qualified installer to assess the heating and domestic hot water demand; compare measured flow rates at the same temperature difference.
Check dimensions, connections, flue gas evacuation, condensate drainage, and controls compatible with the existing installation.
Confirm the included accessories and the delivery time before scheduling the installation. The online purchase of the equipment does not include installation or commissioning.

Technical data

Technical data of Cointra Superlative Supra 28C boiler

Brand: Cointra
Model: Cointra Superlative Supra 28C boiler
Status: New
Supply scope: Boiler only, without flue kit or installation.
Shipping: Included in mainland Spain. Please confirm the deadline.
Commercial reference: V0TPF4AWM

Specifications and dimensions of the model

Compare each magnitude under its testing conditions: heating, domestic hot water, efficiency, and dimensions.

Useful heating power (80/60 °C): 4.7–24 kW
Heating
Useful heating power (50/30 °C): 5.2–26 kW
Heating
Heating water content: 3.4 l
Heating
Heating expansion vessel: 8 l
Heating
Useful domestic hot water power: 4.7–28 kW
Hot water
Domestic hot water flow rate (ΔT 25 °C): 16.1 l/min
Hot water
Domestic hot water demand profile: XL
Hot water
Preparation of domestic hot water: Instantaneous, without domestic hot water accumulator
Hot water
Dimensions (height × width × depth): 700 × 420 × 250 mm
Dimensions and connections
Net weight: 27 kg
Dimensions and connections
Gas supply: G20: 20 mbar; G31: 37 mbar
Dimensions and connections
Electrical supply: 230 V / 50 Hz
Dimensions and connections
Absorbed electrical power: 82 W
Dimensions and connections
Degree of protection: IPX4D
Dimensions and connections
NOx emissions class: 6
Dimensions and connections

Manufacturer's sources

PDF and documentation of the model

Original documents, unmodified. Refer to the installation plan and the conditions of each data point before selecting the equipment.

Superlative SupraPDF · 3 pages · Cointra View original on the manufacturer's website ↗

The gallery sheets are summaries of Uniclima based on these documents. The external volume diagram does not represent connections, accessories, or service distances.

Frequently Asked Questions

Frequently asked questions: V0TPF4AWM condensing boilers

Is it suitable for a 150 m² house?

It can be if the calculated thermal load fits within its 4.7–24 kW at 80/60 °C. For example, 150 m² at 80 W/m² require 12 kW. That area is an assumption, not a certification; the minimum demand and the radiators also need to be checked.

Does it allow two showers of 8 l/min at 40 °C?

With an inlet temperature of 10 °C, it cannot be guaranteed: the two showers require 16 l/min at ΔT 30 °C. The declared flow rate is 16.1 l/min at ΔT 25 °C; the approximation 16.1 × 25/30 gives 13.4 l/min. It is a thermal estimate, not a certified flow rate.

Do you have an 8-liter accumulator?

No. The 8 liters are from the heating expansion vessel. The domestic hot water production is instantaneous; the Comfort preheating reduces the initial wait, but it does not store a sanitary reserve to maintain two showers.

What space do I need in the furniture?

The body measures 70 cm in height, 42 cm in width, and 25 cm in depth. The final opening must allow for the removal of the cover and access to the equipment, as well as accommodate connections and drainage. The dimensions of the casing are not the installation clearances.

When is it worth choosing it over the Supra 24 C?

When more capacity is needed while maintaining the same size: it goes from 14 to 16.1 l/min of domestic hot water at ΔT 25 °C and from 20 to 24 kW maximum heating at 80/60 °C. If the calculated demand is already covered by the 24 C, more power alone is not an advantage.

What changes when moving from this 28 C to the Supra 34 C?

The 34 C rises to 19.5 l/min at ΔT 25 °C and at a maximum heating of 30 kW at 80/60 °C. In return, it requires a depth of 32 cm instead of 25 cm and weighs 31 kg compared to 27 kg. It is advisable to check the space before choosing the higher flow rate.

Does the price include installation and shipping?

Includes VAT and shipping to mainland Spain. Installation and adaptations are valued separately. Boiler only, without flue kit or installation.