Introduction
The German RUHL group consists of several middle-sized companies, world-wide operating in the field of energy saving and environmental protection project. Founded in 1957 the company has been run since two generations as a family owned business. With the experience and the know-how of 48 years in business, RUHL has been established as one of the most competitive companies in the building services sector in the region. We design, set up and maintain technical building equipment, such as district heating supply systems, boiler plants or turn-key-projects for complete heating, air-conditioning and sanitation systems for industrial, commercial, public as well as private customers. In these times of massive air pollution, our special focus is on projects for energy saving and environmental protaction.

As part of the RUHL group, the RUHL Energy & Environmemt International GmbH operates since 1996 successful in the Chinese market. Based on German technologies and products, RUHL contracts projects for district heating, boiler conversion projects, water supply, waste water treatment as well as waste management. As a specialist for system integration in the a.m fields, RUHL assists the client to customize German technologies for their applications in the Chinese Market. RUHL's mission is not to sell products, but to supply the customer with an integrated system solution, optimised in concern of functionality,energy saving and cost efficiency.

The Sino-German Joint Venture LS-RUHL Heat-Engineering Co. Ltd., Lanzhou(Gansu) represents with its wide range of pre-manufactured heating units RUHL's manufacturing base in the Chinese market: A wide range of heating unit systems offers customers the cost benefits of a standard design with built in adaptability to match individual requirements. Pre-tested and skid-mounted for high performance and low operation cost. LS-RUHL covers the Chinese market with it's strong after sales organisation, always being on site to assist the customer in order to maintain his investment for long, save and reliable operation.

Our product range
RUHL is a technology-focused company, and so is the offered product range. We are committed to protecting the environment and have wide experience in energy efficient technologies that conserve scarce resources and reduce energy costs:

District Heating Supply
Heat is valuable - therefore, the efficient distribution of heat is a responsible task. We have special knoe-how in heat production facilities and booster pump stations, district heating substations, long distance piping for steam and hot water, control- and SCADA system as well as different water treatment-technologies.

Individual Heating System
We provide our customers with systems for radiator-, ceiling- or floor heating. Advanced technology combines energy saving with highest standards of comfort and quality.

Boiler- and Burner Technology
It makes no difference, whether the customer needs high-pressure steam, low-pressure steam or hot water. Advanced heat-engineering provides about exactly those conditions, that are required for industrial or housing applications, individual heating or district heating supply. There is special competence in burner-technology for industrial process applications.

Control- and SCADA System
Computer based monitoring and control systems are intended to fulfil high efficiency for complex heating or air conditioning systems, such as DDC-Controller-Technology combined with wired and wireless data transmission between remote terminal units and the main control center via SCADA network.

Air Conditioning Technology
We provide our customers with air conditioning systems for heating or cooling, humidifying or ventilation, combined with equipment for waste heat recovery - Technology, that guarantees a healthy climate.

Environmental Technology
Environmental protection is one of the most important challenges of our time. Highly advanced technologies, like heat-pumps, units for integrated power-heat-cooling-production or dust separation equipment can help to preserve the basis of human life on earth.

Solar-Engineering
The sun represents an almost in-exhaustible source of energy. Solar Engineering provides us with technologies for domestic hot water supply, heating and in combination with an adsorption system for cooling, too.

Do you have any special application in technical building equipment?
We are well prepared to be your reliable partner!

The Services
According to the customer's requirements, RUHL can assist the technical installation's whole lifecycle. We provide equipment, solutions and maintenance programs that deliver return on investment throughout the entire lifetime of the installation.

Consulting
Advanced technologies are intended to solve technical problens - we are intended to assist our customers in applying these technologies - through analysing the project's requirements and defining the best solution in regard of both technical and economical aspects.

Design
Designing technical installations being intended for high total efficiency and low running cost. Profound experience with technical building equipment combined with the skilful application of computer-based planning-tools bring about optimised system functionality - simultaneously reducing the customer's investment cost.

Engineering
We select the most efficient and economic solution for our customer's individual project. Our engineers assist the customers in their whole project management, perform system analysis and simulation, work out system solutions, implement offers, perform construction supervision and prepare documentation.

Installtion
All our employees are well trained and capable of performing all kinds of works in the heating, ventilation and air conditioning sector. We install low-temperature floor heating, process energy supply, expansion and alteration of energy management systems in industrial plants as well as large oil- and gas- fired burners.

Maintenance
In order to preserve the high investment, we assist customers in elaborating individual maintenance strategies for technical equipment.

Special focus on district heating ...
We approach district-heating projects as a joined group of companies, representing Germany's most competitive enterprises in this field, being closely joined by the vision to create something perfect for our customer. We provide project development and care, if expected, for soft-loan- and/or commercial financing for our customer's project. With long-term experience and know-how in this business, RUHL takes the responsibility for the engineering part within this group: we do not only supply the most elaborated products of highest quality for district heating - we also care that these products are individually customised for our client's project and fit into the whole system.