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Welcome to ZOZEN

ZOZEN is one of the best modern boiler manufacturers in China, our products include steam boilers, hot water boilers and thermal oil heaters. ZOZEN boiler is located in Wuxi, covers 150 thousand square meters of production area, equipped with first-class production equipment, passed the ISO9001:2000 international quality system certification. The company gained the " S " and " U " steel seal from ASME of US.

Customer service

If you run into any problems with the boiler, please contact us directly by email or fill out the online service request. We will do our best to resolve any problems you might have within 24 hours.

In case of special condition, ZOZEN will forward your request to one of its partnered sales representatives depending on the country and state. The local maintenance personnel will arrive at the customer site as soon as possible.


ABOUT US-Nordic Ener

It is the authorized distributor of the following brands in China's boiler industry. In the ultra-low-nitrogen boiler reform, coal-to-gas project, pulverized coal boiler system, heat transfer oil boiler system, gas-fired power flue gas denitrification, power station boiler, hazardous waste incineration, steam boiler automatic sewage and energy

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Boiler permanently on | Screwfix Community For

2011-6-2 · I suspect you'll find that it's stuck in one position and is therefore directing the boiler to stay on and supply whatever its stuck position is asking for! You should find a lever on the side of the metal body which can be moved by hand. Turn off the boiler at the mains and try moving the lever from one end to the other and back again a few times.

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K-L series | Once Through Boil

Four position combustion control boiler life and operating efficiency improved by leaps and bounds, Low noise and low NOx environmentally friendly, High efficiency boilercall : 02 322 3191 low volume with low temperature gas for overall unified heat absorption. Furthermore, there is little pressure loss for the gas

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Fire Tube Boiler | Once Through Boil

The best-selling boiler to the tradition of marine boilers, advanced technology of IHI were utilized to further everywhere. The combustion control and burner IHI proprietary high efficiency of unbeatable 87-92% Effective Use of exhaust gas due to economizer and air heater built-in, energy-saving further Low-emission boiler low NOx, and low noise

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Weil McLain Boiler Troubleshooting - All Things HV

Weil McLain Boiler Troubleshooting. This section reviews common problems and Weil McLain boiler troubleshooting tips to determine their cause. 1. No Heat At All. If the electrical circuit for the boiler is on and the power switch on or near the boiler is on, crank the heat way up. If the boiler

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Very noisy residential boiler! — Heating Help: The Wa

Very noisy residential boiler! Vlad Posts: 16 Member. Delta T=14F, seems reasonable? Although its' funny, when my Delta T is low I get noise, as soon as the water heats up well, the noise seems to go away. I spoke with a Tech at Raypak and he refered to the same issues as you gentlen speak of. you may be in a position for a replacement

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Boilers | Gas Boilers | Screwfix.c

It would also be recommended to talk to an installer for advice, and remember to ensure that the installation is performed by a gas safe registered engineer and it is serviced every year. There is a superb central heating boilers range available from top manufacturers, recognized and trusted by the trade.

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Low Water Cutoff Controls: Guide to LWCOs on ho

A Guide to Inspecting and Flushing Low Water Cutoff Valves on Steam Heating Boilers What is a low water cutoff valve or LWCO? In order to avoid a heating boiler explosion or damage from loss of water, the low water cutoff is a device intended to shut down unsafe heating equipment by turning off electrical power to the oil burner or gas burner should the water level or pressure in the heating

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Residential Gas & Oil Boiler Prices and Reviews 201

2019-10-8 · Boiler efficiency: Boiler efficiency is measured in Annualized Fuel Utilization Efficiency (AFUE) and expressed as a percentage of the heat created being transferred into the system's water rather than lost in the combustion gases exhaust. The least efficient boilers have AFUE ratings in the low-80s. The most efficient have AFUE ratings above

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Gas condensing boiler VIESMANN VITODENS 200

2016-1-21 · –A change in the gas type requires no change of nozzle –Consistently high efficiency, even in case of fluctuating gas com-position –Consistently low emissions –Low combustion noise through low fan speed Delivered condition Wall mounted gas condensing boiler with Inox-Radial heat exchanger,

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Hi. A new vaillant ecotec plus combi boiler wa

Hi. a new vaillant ecotec plus combi boiler was installed in my 3 bed house after having issues with my condensing boiler and tank. Then the radiators downstairs especially sitting room was very low on heat meaning heat is good when the heating is ON for 10 minutes,then gradually goes down. there is a tapping noise and boiler vibrating

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