The Kumulo tank with coil in the external tank forms the basis of a complete DHW and c.h. heating system. It combines a central heating buffer and domestic hot water heat exchanger in one device. Instead of two devices, one combined tank is installed that stores heat supplied from several sources. The tank-in-tank construction enables free exchange of this heat between DHW and c.h. systems. The energy-saving construction significantly reduces the amount of energy consumed in the building and allows for its optimal use. Using a heat accumulation tank guarantees high comfort of heating and domestic water as well as significant cost reduction.

Accumulation of supply sources

Kumulo means accumulation. Accumulation of energy from various sources and the possibility of its utilization. The upper, smaller tank serves as a source of domestic hot water and is immersed in a buffer tank supplying the central heating system. This allows free energy exchange between c.h. and DHW systems. Hot water supplying the central heating circuit transfers heat to the DHW tank, allowing the achievement of appropriate domestic water temperature. In the lower part of the c.h. tank there is an enlarged spiral coil guaranteeing optimal utilization of solar collector power. The c.h. tank also has the possibility of mounting an insulated, electric GE heating kit with heater and thermostat. Installation of a three-sensor system allows constant supervision of the DHW and c.h. heating system temperature and the most efficient selection of supply sources. Depending on needs, the system is supplied only by solar collectors or additionally by a heat pump or c.h. boiler and electric heater.

Comfortable installation

Placing connections to the central heating tank symmetrically on the sides enabled maximum simplification of installation and maintenance. Domestic water tank connections, including circulation and temperature sensor, were concentrated in the upper bottom. Kumulo with one spiral coil enables connection of c.h. boiler supply in various configurations. This ensures appropriate system efficiency and economy. In summer period, with demand only for domestic water, the c.h. tank can be supplied only in the upper part. This guarantees the fastest heating of domestic water stored in the upper tank. At the height of lower and upper supply, in the external tank and in the upper bottom, sleeves for temperature sensors were placed. Their use guarantees reduction of heating costs and allows avoiding overheating of the heating system. Water temperature in the central heating tank is selected according to the type of heating system: for radiators - higher or for underfloor heating - lower. The Kumulo tank enables various configurations of external and internal tank capacity.

Savings guarantee

Thanks to the use of various c.h. tank supply sources, mainly using renewable energy sources, an efficient heating system was created, enabling reduction of heating costs. Combining supply from solar collectors and heat pump allows creating a Hybrid Heating System, which will ensure economical operation and highest care for the environment. Using heat utilized in the c.h. system allows ensuring domestic hot water comfort at low additional cost. Thanks to the use of efficient insulation, made in patented thermal insulation technology, hot water stored in tanks maintains its temperature for a long time. Low standby losses contribute significantly to ensuring high system efficiency. Additional thermal insulation is provided by the external tank casing made of gray covering type: leatherette/PVC, also offered in one of 2 additional colors.

Insulation:

• Hard polyurethane foam in leatherette/PVC casing.
• Removable Neodul insulation - 800/200, 1000/200 l.

Safe use

The construction of the domestic water tank allows using a complete anti-corrosion protection system. The interior of the tank is covered with the highest quality EXTRA GLASS® ceramic enamel. Enamel applied by the "wet" method and fired at high temperature accurately fills all micro-gaps. Its action is complemented by the standard magnesium anode. Additional tank protection is provided by the combination of unique protection systems: PLASTIC SLEEVE® and RESIST-TECH® guaranteeing anti-corrosion protection of the entire tank surface.

Complete additional equipment

Galmet's offer also includes:

• Copper coil, corrugated with increased heat exchange surface, for installation in external tank.
• GE electric kits with heater and controller.
• Temperature sensor covers.
• C.h. expansion vessels for open systems, painted (optionally also insulated).

Guaranteed quality

The best raw materials, advanced production technology and over 40 years of experience guarantee the highest quality at every stage of Kumulo tank production. This allows offering users a 60-month warranty (details in the warranty card).