Planning a budget for the organization of heating and maintaining its performance is one of the priority tasks for the owner. It is the cost part that is the main limitation when choosing equipment and components for heat supply. What is the estimate of the heating system for: installation, pressure testing, flushing, repair?
Rules for drawing up estimates for heating maintenance
It is almost impossible to foresee all costs with an accuracy of the ruble when planning heating. But a correctly calculated estimate for the installation of heating will help determine the approximate amount of costs.
For the correct formation of the list of current costs, a deep primary analysis and, in some way, marketing research of the market for services and materials is required. These activities should be started even before purchasing equipment and components. The estimate for the installation of the heating system includes the following items:
- Consumables and equipment - boiler, expansion tank, circulation pump, pipes, etc .;
- Installation cost - specialist services, home adaptation for heating installation;
- Preparatory work for testing and launching the system - filling with coolant, pressure testing, adjustment of control devices and safety groups.
In fact, the estimated estimate of heating a private house will consist of several documents - a description of installation costs, materials (equipment and components), as well as services for starting heat supply. Despite the fact that some of them can be done independently, it is recommended to take these costs into account.
Structurally, a sample of an estimate for heating should consist of the name of the costs, a description of their characteristics and features, the cost per unit, the required quantity and the total amount.
A separate document must be drawn up for each type of work. So, the estimate for the pressure testing of the heating system will include unique measures inherent only to this procedure. Therefore, it is recommended that you first familiarize yourself with the nuances of drawing up estimates of various types.
Any standard form can be used for budgeting. It is only important to decide on its content - a list of materials and services.
Installation estimate of heat supply
This selection of components for the future heating system is one of the most important. In practice, problems begin at the stage of selecting the main components of the system - the boiler and radiators.
In an effort to save as much as possible, the cheapest models are purchased. Moreover, their nominal characteristics do not correspond to the calculated ones. As a result, this leads to a significant decrease in the efficiency of the system.
How can you avoid this situation? It is necessary to correctly calculate the costs of organizing heat supply. To do this, you will need an estimate for the installation of heating and the purchase of components. Its correct compilation is possible only if you follow these recommendations:
- Calculation of heating depending on the current parameters of the building (heat losses), the type of energy carrier (gas, solid fuel, diesel, etc.). The required heat supply for each room in the building is also calculated.
- Based on the data received, a list of equipment is compiled - a heating boiler, radiators, a security group (air vent, expansion tank, thermostats) and pipelines. The type of the latter largely affects the estimate of the installation of heating. Polymer can be installed independently, when steel lines are installed with the help of specialists.
- The monitoring of the market is carried out, as a result of which the components of heat supply that are optimal in terms of cost and technical characteristics are selected.
- The columns of the estimate for the installation of the heating system are filled in: the cost of equipment, transport costs and installation work.
Accepted samples of estimates for heating may have a different format. The main thing is that it is convenient for the compiler to fill them out and then use them as the main financial document for planning purchases.
When involving third parties (organizations) in the installation of heating, it is necessary to agree in advance on all items of the estimate in order to avoid further inconsistencies, both financially and technically.
Formation of estimates for the maintenance of the heating system
What is the difference between an estimate for the repair of a heating system and a document for the implementation of installation work? First of all, at a much lower cost. However, in this case, special attention must be paid to the selection of consumables. They need to be adapted to the current system. An analysis of future repair costs is performed first. For this, the area of the heat supply problem is determined and materials are selected for its elimination. Unlike estimates for the installation of heating, consumable components cannot have a large assortment. So, for chemical cleaning of pipes, it is necessary to use a special liquid, which will be problematic to find an analogue.
In general, when forming an estimate for the repair of a heating system, one should be guided by the following rules:
- The technical and operational parameters of the replaced components must fully correspond to the old ones that are out of order. For example, when replacing a piece of plastic pipe, you should choose the same one made of a similar material and having the same geometric dimensions;
- In addition to the cost of new components, an estimate for their installation in heating is filled;
- Transport costs and the services of repair specialists must be taken into account.
Often in the repair estimate for heating a private house there are components that are purchased "in reserve". The specialist can determine the "weak" places of the heat supply and will advise you to buy the most necessary components to perform prompt repairs.
Estimating the restoration of the heating system is most often performed after the repair has been completed. For correct filling, you should keep a draft version of the document, which indicates all services and materials.
Estimates for flushing pipes and heating radiators
Cleaning the heating supply from accumulated dirt and limescale should be performed at least once every 3-4 years. It depends on the composition of the coolant and the material for the manufacture of radiator pipes. For steel models, the frequency is less, since a corrosion layer forms on their inner surface.
A correctly formed estimate for flushing heating directly depends on the selected technology. In chemical cleaning, most of the costs will be a special composition. For the hydraulic system, the cost (rent) of the apparatus for performing this work must be indicated in the estimate for flushing the heating.
The features of filling out this type of document include the following:
- The costs of analyzing the degree of contamination of the pipeline and radiators are necessarily taken into account. Without this, the estimate for cleaning the heating will not be complete;
- After completing all preventive measures, the current state of the system is checked;
- The costs of disposal of the contaminated liquid are taken into account. If the work is performed by a specialized company, this item is most often not indicated in the flushing estimate of the heat supply of a private house.
A separate category of work is flushing the boiler heat exchanger. As well as when filling out the estimate for the installation of the heating system, in addition, the costs will include work on disassembling and assembling the heater. It is not recommended to flush the heat exchanger in a flow-through manner.
For greater efficiency, it is necessary to clean the entire heating system, and not individual parts of it. This will increase the budget, but also significantly increase the efficiency of the system.
Estimate for pressure testing of heat supply lines
After installation, repair work or before filling the system, it must be pressurized. Its meaning is to create excess pressure inside pipes and radiators (1.25 times higher than the nominal) to search for a possible burst and check the tightness of the entire heat supply.
In the estimate for the pressure testing of the heating system, the type of work performed must be indicated. It can be carried out hydraulically or by air. It is preferable to choose the first one, as it makes it easier to identify microcracks or incorrectly installed fittings.
As an additional equipment in the estimate for the pressure testing of the heating system, hydraulic pumps can be included. They can be rented, since the purchase for autonomous heating is impractical.
It must be remembered that the estimate for the installation of a heating system may vary depending on market conditions - a sharp jump in prices for services and goods. But despite this, it remains the main financial document for the installation and repair of heat supply.
In the video, you can see an example of a specialized software package for the preparation of estimates of varying complexity:
