{"id":12551,"date":"2025-12-02T14:09:09","date_gmt":"2025-12-02T13:09:09","guid":{"rendered":"https:\/\/fvb.se.ny.haus.se\/?post_type=fvb-nytt&p=12551"},"modified":"2025-12-04T10:27:13","modified_gmt":"2025-12-04T09:27:13","slug":"dialogue-key-to-district-heating-renewal","status":"publish","type":"fvb-nytt","link":"https:\/\/fvb.se.ny.haus.se\/en\/fvb-news\/dialogue-key-to-district-heating-renewal\/","title":{"rendered":"Dialogue key to district heating renewal"},"content":{"rendered":"\n
\"\"
Careful selection of materials and working methods has been very important.<\/figcaption><\/figure>\n\n\n\n

The entire secondary district heating grid under the neighbourhood of Brunnsg\u00e4rdet in \u00d6rebro is being replaced. Pipes leading to no less than 384 households are involved. This extensive project has been under way since 2018, and will be completed in November this year. FVB is responsible for the project design and management.\u00a0<\/em><\/strong><\/p>\n\n\n\n

The neighbourhood of Brunnsg\u00e4rdet consists of terraced houses along seven lanes with their own courtyards. The houses were built between 1967\u201368 and were connected to the district heating system at the time. Each courtyard contains a centrally located substation where district heating from E.ON terminates. From each substation, a secondary grid branches out to each household, and this is the grid that is now being replaced because of age and problems with leaks. <\/p>\n\n\n\n

The secondary grid lies in a crawl space leading to the houses and the old copper pipes are now being replaced with new ones in exactly the same position \u2013 work that has not been easy. <\/p>\n\n\n\n

\u201cWe had to make some careful choices in terms of methods and material to carry out this job,\u201d says Jan Baastad, Project Manager at FVB. <\/p>\n\n\n\n

Welding outdoors<\/strong><\/p>\n\n\n\n

The choice of materials for the pipes was between PEX, copper and steel, with prefabricated steel culverts being the final choice. These culverts allow higher temperatures and have the advantage of integrated alarm sensors in the insulation. The alarm sensors detect moisture and trigger an alarm if any leaks occur in the future.<\/p>\n\n\n\n

\u201cJoining the steel culverts together was performed with safety in mind. We avoided welding in the crawl space, welding and pressure-testing each joint outdoors instead. We then successively built up the pipe system in the crawl space,\u201d explains Baastad.<\/p>\n\n\n\n

\u201cWe\u2019ve worked hard on developing the method to be able to replace the secondary grid in a crawl space and have now proved that it can be done efficiently,\u201d he adds. <\/p>\n\n\n\n

Another important lesson learned was how the work can be done smoothly within someone\u2019s home.<\/p>\n\n\n\n

\u201cThat\u2019s something else we worked with a lot. It involved continuously giving the residents updated information. Our contractor, Viby Maskintj\u00e4nst, was also good at working in environments where people live and making sure their everyday lives continue to run smoothly while the work was being done.\u201d <\/p>\n\n\n\n

\"\"
The main lines to 384 households have been replaced.<\/figcaption><\/figure>\n\n\n\n

Quality information<\/strong><\/p>\n\n\n\n

Malin Uhl\u00e1n is the chairperson of the Brunnsg\u00e4rdet Samf\u00e4llighetsf\u00f6rening (ownership association) and agrees with Baastad. She points to the regular meetings and continuous feed of information as key factors of the project\u2019s success. <\/p>\n\n\n\n

\u201cRepresentatives from both the contractors and the association were incredibly engaged in answering questions. The fact that they took the time and found the right solutions to ensure there was as little impact as possible for the residents meant that the work went extremely well,\u201d she says.<\/p>\n\n\n\n

For the residents, the work was of course substantial, as it took place between May and September in the various lanes. During that period, they had no external heating or hot water piped in. <\/p>\n\n\n\n

\u201cWe arranged the work to be done during this period to avoid cold houses for the residents, but they were given access to support elements when needed. Regarding hot water, every owner was given a small hot water heater capable of heating 30 litres, which meant they became very good at planning their hot water usage,\u201d says Uhl\u00e1n.<\/p>\n\n\n\n

For more details, contact: <\/em><\/p>\n\n\n\n

Jan Baastad, 019-30 60 66.<\/em><\/p>\n\n\n\n

Careful choice of material and working methods was vitally important.<\/em><\/p>\n\n\n\n

The pipes to 384 households were replaced.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

The entire secondary district heating grid under the neighbourhood of Brunnsg\u00e4rdet in \u00d6rebro is being replaced. Pipes leading to no less than 384 households are involved. This extensive project has been under way since 2018, and will be completed in November this year. FVB is responsible for the project design and management.\u00a0 The neighbourhood of […]<\/p>\n","protected":false},"featured_media":12536,"menu_order":0,"template":"","expertise-cat":[329,253,328],"services-cat":[178],"fvb-categories":[],"fvb-nytt-cat":[],"class_list":["post-12551","fvb-nytt","type-fvb-nytt","status-publish","has-post-thumbnail","hentry","expertise-cat-combined-heat-power","expertise-cat-district-heating","expertise-cat-district-heating-network","services-cat-projekt"],"acf":[],"_links":{"self":[{"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/fvb-nytt\/12551","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/fvb-nytt"}],"about":[{"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/types\/fvb-nytt"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/media\/12536"}],"wp:attachment":[{"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/media?parent=12551"}],"wp:term":[{"taxonomy":"expertise-cat","embeddable":true,"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/expertise-cat?post=12551"},{"taxonomy":"services-cat","embeddable":true,"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/services-cat?post=12551"},{"taxonomy":"fvb-categories","embeddable":true,"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/fvb-categories?post=12551"},{"taxonomy":"fvb-nytt-cat","embeddable":true,"href":"https:\/\/fvb.se.ny.haus.se\/en\/wp-json\/wp\/v2\/fvb-nytt-cat?post=12551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}