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cycling

Cycling, also called bicycling or biking, is the use of bicycles for transport, recreation, exercise or sport. People engaged in cycling are referred to as "cyclists", "bicyclists", or "bikers". Apart from two-wheeled bicycles, "cycling" also includes the riding of unicycles, tricycles, quadricycles, recumbent and similar human-powered vehicles (HPVs).
Bicycles were introduced in the 19th century and now number approximately one billion worldwide. They are the principal means of transportation in many parts of the world, especially in densely populated European cities.Cycling is widely regarded as an effective and efficient mode of transportation optimal for short to moderate distances.
Bicycles provide numerous possible benefits in comparison with motor vehicles, including the sustained physical exercise involved in cycling, easier parking, increased maneuverability, and access to roads, bike paths and rural trails. Cycling also offers a reduced consumption of fossil fuels, less air or noise pollution, reduced greenhouse gas emissions, and greatly reduced traffic congestion. These have a lower financial cost for users as well as for society at large (negligible damage to roads, less road area required). By fitting bicycle racks on the front of buses, transit agencies can significantly increase the areas they can serve.In addition, cycling provides a variety of health benefits. The World Health Organization (WHO) states that cycling can reduce the risk of cancers, heart disease, and diabetes that are prevalent in sedentary lifestyles. Cycling on stationary bikes have also been used as part of rehabilitation for lower limb injuries, particularly after hip surgery. Individuals who cycle regularly have also reported mental health improvements, including less perceived stress and better vitality.Among the disadvantages of cycling are the requirement of bicycles (excepting tricycles or quadricycles) to be balanced by the rider in order to remain upright, the reduced protection in crashes in comparison to motor vehicles, often longer travel time (except in densely populated areas), vulnerability to weather conditions, difficulty in transporting passengers, and the fact that a basic level of fitness is required for cycling moderate to long distances.

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  1. B

    Potterton Performa 30HE hot water goes off - power cycling restores

    Hi I have a Potterton Performa 30HE in a one bedroom apartment. For a few months I have noticed that it takes several minutes before the taps to run hot. But last week they stopped running hot altogether. I have found that if I switch the electrical power to the boiler off and on again normal...
  2. E

    Vaillant ecoTEC plus 824 actuator motor cycling

    Hi, as title says the actuator motor keeps cycling and sounds like the gears slipping. The pump is running freely and the diverter valve is running free. I have seperated the motor from the diverter valve and extended the motor piston. On powering up the boiler the piston retracts but then goes...
  3. fronty

    Ideal Logic combi cycling when CH hits 50

    Hi, my Mum's Ideal Logic combi keeps cycling when the temp reaches 50 degrees despite the CH control set to max. The manual says the flow temperature should reach 80 when set to max but I can actually hold the CH feed pipe with my hand and it never gets hot enough to cause me to let go before...
  4. N

    Short Cycling Boiler

    Hi, First time poster. I've been banging my head against a wall this past month on google searches and soliciting advice of a couple of plumbers as well as the boiler supplier. I got a De Dietrich 28-33kw Combi boiler installed just over a year ago, with UFH downstairs (3 zones) and radiators...
  5. S

    Baxi 80e continuously cycling on and off on heat

    I have a Baxi 80e, old, but works well and I'm told easy to work on and spares available at a reasonable price, so not keen to put in a new one just for the sake of it. At the beginning of April, it developed a fault on the heating side (hot water is fine). It lights (when heat is requested by...
  6. A

    baxi eco 80 cycling during CH only

    Baxi eco 80 hot water fine but heating causes the boiler to cycle once rads have warmed up.firing too often in too short a period. is this something worth investing in or consider new combi.I know all parts are readily available for this boiler and don't want to plod out thousands if it can be...
  7. V

    Viessmann boiler short cycling

    Hi, I have noticed my boiler Viessmann Vitodens 100-W(B1HC-26) makes a series of short cycling before starting to heat. Boiler is controlled by Baxi uSense room thermostat connected via Opentherm. I installed some monitoring equipment to get the better understanding of the problem. Bellow is...
  8. J

    Atag boiler only cycling on for a short time

    Hi, I had an Atag system (heat only) boiler fitted about 3 years ago. It’s model IR24 LPG. It’s worked fine for the first year or so, but on the second winter (last winter) it had a strange problem where it would only cycle on for about 1 minute and then would go off for about 5 minutes, before...
  9. H

    Boiler cycling when system up to temperature

    Hello, can anyone explain what causes a Honeywell Ultracom 24hxi that works as expected when the system is cold, but when the system gets up to temperature the boiler starts to constantly cycle and fire quickly every 30 seconds or so. - When the system is cold the boiler will fire for a period...
  10. J

    Worcester Bosch Greenstar Combi Anti Cycling

    Acquaintance has problem with a 5 radiator zoned system which takes ages to heat up. The boiler (don't know output) fires up normally and after ~ 20 minutes reaches its setpoint of 65C, over the next few minutes it will creep up to 70C and then cut out, again fairly normal if min boiler output...
  11. W

    Vaillant Ecotec Pro 28 Anti Cycling and Other Issues

    Hi We recently moved into a refurbished property, don't know how old the boiler is but recently all the radiators were replaced. There is a new remote room thermostat added as well. First problem is when the thermostat says it's not calling for heat, the boiler is constantly firing up and the...
  12. S

    Boiler short cycling/ Flow issue

    Dear forum readers, I have had quite a lot of work done to my CH system including TRV replacement, new radiator installation, new pump installed and several repairs as a result of the work including repair of leaks under the concrete floors! However, I am still faced with some serious...
  13. T

    Whistling UFH mixer valve & cycling boiler - no ABV?

    Hi all, New to this forum but hoping you could give me a hand with some issues I'm having with my UFH. I bought a house in Nov last year that has wet UFH in a kitchen extension. It's a relatively small area with only 2 loops, total 90m piping and 2-port manifold. Manifold model is Wunda...
  14. B

    Boiler cycling issue

    Hello, Just wanted some assistance if I may? I have been to a job whereby the heating gets to temperature, stays off for approx 90 seconds then fires up again. The room stat is in the hallway, and may be the culprit (it’s a Honeywell t6360 with no neutral, just a live in and switched out). All...
  15. B

    Glow Worm boiler keeps cycling with no demand

    Hi all, first post but have a major issue that's causing me headaches. My system boiler (Glow Worm Flexicom 18hx) continues to cycle to keep itself up to temperature, even without any demand from the programmer (Drayton Lifestyle LP 522) which is also causing the pump in the upstairs airing...
  16. B

    Short cycling Bosch Worcester 30CDi Greenstar - Bypass Valve?

    My first post, so apologies for any incorrect terminology I had a Bosch Worcester 30CDi Greenstar Classic Regular Boiler installed in 2014. The Boiler is used in a vented S-plan system, with two motorised valves, a manual Bypass Valve, a British Gas (Grundfos) Multi-head pump, Hot Water...
  17. Robert Tyrrell

    Grant Combi 70 MKll Cycling

    Got called to a Grant Combi 70 MKll today to find that its; cycling - 2 minutes on and 2 minutes off. The house reaches temperature but it takes a couple of hours to do so. About 6 months back I fitted a new boiler heat control and today I've fitted a new primary store stat but it''s still...
  18. M

    Boiler short cycling modulation problem.

    My boiler keeps short cycling when the UFH (ground floor 5 zones) is demanding heat. Burner is on for 1 min and off for 3 mins constantly. I have CH (5 Rads) upstairs HW as well. Boiler is Potterton Tittanim 40kw. Boiler modulates perfectly when CH and HW are demading and burner remains...
  19. E

    ideal boiler cycling

    I have an ideal boiler which is currently cycling and driving us mad. It will only cycle within the set timed periods and once the set temp has been achieved. Fire up for 1 minutes and then goes into shutdown process. Five minutes later goes through same process. After speaking to ideal...
  20. E

    boiler is Short cycling

    should a boiler short cycle. I have a ideal logic heat 12 and once it gets to it get to the required temp it turns off correctly. Shortly after the blue burner light comes on for a min then turns off and then it powers down for 4 mins and then boiler turns off. Five minutes later starts the...
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