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Double Coil Water Heater — Product Image
Product ImageEnerji B
Water Heater

Double Coil Water Heater

160 L – 5,000 L

160 L – 5,000 L. Double-coil water heater for combined boiler + solar panel installations.

Energy Class
B
Max. Coil Temperature
Maks. 110 °C
Max. Hot Water
Maks. 90 °C
Test Pressure
13 Bar
  • 25+ years experience
  • 7,000 m² production
  • TSE & ISO certified
Certifications & ComplianceCEISO 9001:2015ISO 14001:2015ISO 45001:2018TSE
01

Overview

A double-coil water heater has two separate coils (heat exchangers), so it can connect to two different heat sources at once. Omega double-coil water heaters are made from 160 to 5,000 liters, protected against corrosion with enamel inner coating and cathodic protection (anode rod), and rated energy class B. The most common use is combining a solar collector with a combi or boiler in a single tank.

The purpose of a double-coil water heater is to combine two heat sources in one tank for uninterrupted domestic hot water. In a typical setup the lower coil connects to the solar collector and the upper coil to the combi or boiler. When the sun provides enough heat the water is heated by solar; when it falls short, the combi steps in to bring the water to the target temperature.

02

Key Features

  • Operates with two heat sources (e.g. solar + boiler)
  • Wider coil surface for higher efficiency
  • Practical, economical, modern design
  • High-quality, certified materials
  • Enamel inner coating
  • Cathodic protection (anode rod)
  • Thermometer included
  • Long-lasting and durable
03

Operating Values

Max. Coil Temperature
Maks. 110 °C
Max. Hot Water
Maks. 90 °C
Test Pressure
13 Bar
Working Pressure
10 Bar
Inner Coating
Enamel
04

Specifications Table

160 L
Insulation Type
PU
Insulation Thickness (mm)
50
Diameter A (mm)
550
Height H (mm)
1150
Upper Coil Surface (m²)
0,51
Lower Coil Surface (m²)
0,61
Dry Weight (kg)
64
Footprint (m³)
0,37
Jacket
Vinlex
200 L
Insulation Type
PU
Insulation Thickness (mm)
50
Diameter A (mm)
550
Height H (mm)
1380
Upper Coil Surface (m²)
0,6
Lower Coil Surface (m²)
0,95
Dry Weight (kg)
82
Footprint (m³)
0,45
Jacket
Vinlex
300 L
Insulation Type
PU
Insulation Thickness (mm)
50
Diameter A (mm)
650
Height H (mm)
1650
Upper Coil Surface (m²)
1
Lower Coil Surface (m²)
1,15
Dry Weight (kg)
131
Footprint (m³)
0,87
Jacket
Vinlex
500 L
Insulation Type
PU
Insulation Thickness (mm)
50
Diameter A (mm)
750
Height H (mm)
1650
Upper Coil Surface (m²)
1,25
Lower Coil Surface (m²)
1,85
Dry Weight (kg)
175
Footprint (m³)
1,02
Jacket
Vinlex
800 L
Insulation Type
PU
Insulation Thickness (mm)
50
Diameter A (mm)
850
Height H (mm)
1700
Upper Coil Surface (m²)
1,35
Lower Coil Surface (m²)
2
Dry Weight (kg)
228
Footprint (m³)
1,30
Jacket
Vinlex
1000 L
Insulation Type
PU
Insulation Thickness (mm)
50
Diameter A (mm)
950
Height H (mm)
2100
Upper Coil Surface (m²)
2
Lower Coil Surface (m²)
2,83
Dry Weight (kg)
304
Footprint (m³)
1,94
Jacket
Vinlex
1500 L
Insulation Type
Sünger
Insulation Thickness (mm)
50
Diameter A (mm)
1200
Height H (mm)
2000
Upper Coil Surface (m²)
2,2
Lower Coil Surface (m²)
2,97
Dry Weight (kg)
492
Footprint (m³)
2,88
Jacket
Vinlex
2000 L
Insulation Type
Sünger
Insulation Thickness (mm)
50
Diameter A (mm)
1200
Height H (mm)
2300
Upper Coil Surface (m²)
2,97
Lower Coil Surface (m²)
4,25
Dry Weight (kg)
643
Footprint (m³)
3,32
Jacket
Vinlex
2500 L
Insulation Type
Sünger
Insulation Thickness (mm)
50
Diameter A (mm)
1380
Height H (mm)
2300
Upper Coil Surface (m²)
2,97
Lower Coil Surface (m²)
4,53
Dry Weight (kg)
735
Footprint (m³)
4,70
Jacket
Vinlex
3000 L
Insulation Type
Sünger
Insulation Thickness (mm)
50
Diameter A (mm)
1380
Height H (mm)
2400
Upper Coil Surface (m²)
4,53
Lower Coil Surface (m²)
5,6
Dry Weight (kg)
818
Footprint (m³)
5,06
Jacket
Vinlex
4000 L
Insulation Type
Sünger
Insulation Thickness (mm)
50
Diameter A (mm)
1450
Height H (mm)
2850
Upper Coil Surface (m²)
4,8
Lower Coil Surface (m²)
5,95
Dry Weight (kg)
1014
Footprint (m³)
6,00
Jacket
Vinlex
5000 L
Insulation Type
Sünger
Insulation Thickness (mm)
50
Diameter A (mm)
1650
Height H (mm)
2850
Upper Coil Surface (m²)
5,65
Lower Coil Surface (m²)
6,8
Dry Weight (kg)
1210
Footprint (m³)
7,75
Jacket
Vinlex
05

Technical Drawing

Refer to the catalog technical table for connection and dimension codes.

Double Coil Water Heater · Technical Drawing

Double Coil Water Heater Prices

Double-coil water heater prices vary by capacity. As of July 2026, based on retail references on n11, 160-liter models start around 21,000 TL and 1,000-liter models can reach about 73,500 TL. Large and industrial projects are priced per project; we offer below-retail pricing on wholesale and project orders.

Prices are approximate and may change; request a quote for current and wholesale/project pricing.

Frequently Asked Questions

What is a double-coil water heater?

A double-coil water heater connects to two heat sources at once thanks to two separate coils (heat exchangers). Made from 160 to 5,000 liters, with enamel inner coating, cathodic protection and energy class B.

What does a double-coil water heater do and where is it used?

It combines a solar collector with a combi or boiler in one tank for uninterrupted hot water: solar when available, combi when not. Used in homes and villas with solar plus combi, in apartments and complexes on central systems, and in hotels and facilities needing high capacity.

What is the difference between a double-coil and a single-coil water heater?

A single-coil unit connects one heat source; a double-coil unit connects two (for example solar and combi) to the same tank for combined use. Projects planning to add solar now or later prefer double-coil.

How is a double-coil water heater connected?

The lower coil usually connects to the solar collector circuit and the upper coil to the combi or boiler circuit. The solar collector raises the water temperature first, and where it falls short the upper coil brings the water to the target temperature. Exact connection points and pipe diameters vary by capacity and are confirmed per project with our technical team.

Request a quote for this product

Let our engineering team recommend the right capacity and configuration.

Double Coil Water Heater Prices | Omega Boyler