2010年1月2日 · Think multiple short, low-speed trips in your car in the winter. You'll get lousy gas mileage verses a long highway trip at constant speed. Same idea with the boiler, or any heating device. It works best running constantly. Now, why it would be short cycling is the real issue.

2020年12月12日 · If you want to install air conditioning you may be able to use a right-sized heat pump instead of a short cycling oil boiler to heat the place. In most markets the operating cost of a decent right-sized heat pump would be comparable to or cheaper than a right-sized oil burner, and the comfort levels higher.

2019年12月21日 · A common reason for short cycling is having a boiler that is way oversized for the structure. A second reason is if the thermostat is located where it can be influenced too quickly for a local change, i.e., it's near a heat source and is sensing that versus the general room temperature. On a boiler, there's usually a min/max.

2020年2月9日 · With the 0.85 gph nozzle and a boiler output temp of 180F, with 160F on the return (=average water temp of 170F ) it takes about 200' of Fineline 30 or similar to emit the full output of the boiler. If the house is zoned floor by floor each zone would need to have a substantial fraction of that 200' to limit short-cycling.

2014年10月7日 · Boiler made its first appearance for central heating this side of the year. After many issues to fix this last year with it it seems like one still remains and that is short cycling. It starts up and stays on for about 10 maybe 15 mins before falling into cycling mode of 1 …

2019年10月1日 · Reading through this forums and research on the internet however suggests that this would cause short cycling on the space heating side due to the heat load of individual heating zone is a lot lower than the combi boiler minimum btu. One contractor argues that short cycling can be avoided by using primary/secondary piping (or pumping ...

2008年3月11日 · The boiler is either the Weil-McLain EG 40 or 45 gas boiler. The thermostat is a Honeywell T8600D. What I have done so far. Since I changed the cph from 6 to 3, I've noticed the boiler don't come on very frequent as it used to. I left the thermostat at 68 for the whole day yesterday. When I got home at 7pm, the boiler felt warm, radiators are cold.

2014年11月16日 · For a temporary fix, you can go to "Contractor Menu", "Boiler Setting", "Boiler Model" and choose the "110" model. The Eco 110 model & the 155 model have different "flame signal shutdown" valves / settings. This temporarily solved my problem but the tech people say the correct gasket for the 155 must still be installed.

2007年8月11日 · The boiler is short cycling because it puts more heat into the water than can be effectively radiated. The ideal solution is a modulating burner with a wide turn down ratio. Unfortunately retrofitting a modulating burner and it's associated controls is not typically considered to be an economically viable option.

2019年12月20日 · It has an L 4080 b 1212 aquastat that kicks off the boiler at 180 water temp. Circulating pump still runs. The problem is my house still calls for heat and It will short cycle all night long . On for 2 mins off for 5 on for 2 off for 5 on for 2 off again and so on....I dont think thats nor good nor normal. So my question is this...