Wattsestimate

Typical figures for this type, from the sources at the foot of this page. Watts vary by model and age. Check the label on your own appliance and enter it for an exact answer.

Running, typical
44 W
Running, low to high
44 Wone published figure
Starting
Not publishedmotors often need 2 to 3 times their running watts to start
Typical use a day
12 hhours the motor actually runs
Average draw while on
44 W
Voltage
120 V
  • Assumes the motor runs the whole time; real use is often less.
  • Starting watts not published; motors often need 2 to 3 times their running watts to start.

The math

Worked with the typical figure, as the calculator does it.

  1. Output44 W running, so the station's continuous output must be at least 44 W.
  2. SurgeStarting watts are not published, so the surge check uses the 44 W running figure.
  3. Average draw44 W: the running watts count for every hour it is on, as if the motor never paused.
  4. A typical day44 W × 12 h = 528 Wh a day.
  5. 8 hours of running44 W × 8 h = 352 Wh usable, ÷ 0.85 = 414 Wh of rated capacity.
  6. 24 hours of running44 W × 24 h = 1,056 Wh usable, ÷ 0.85 = 1,242 Wh of rated capacity.
  7. On the Jackery Explorer 1000 Plus1,265 Wh × 0.85 = 1,075 Wh usable, ÷ 44 W = 24.4 h.

Stations that run it

Every power station in the data with this appliance alone plugged in, at 85% efficiency. Type the running watts from your own label and the table works it out again.

Add it to the runtime calculator with the rest of your list

What moves the number

44 W is the maximum operating power of current high efficiency circulators; no lower or typical figure is published, so all three values are the same. Older fixed speed circulators draw more, but no official figure for them could be confirmed.

A gas boiler's own controls and fan need power as well, so count the boiler separately. The 12 hours a day here is our planning default for a winter day.

Questions

How many watts does a boiler circulator pump use?
About 44 W while running. That figure is an estimate: few published figures exist for this type. Watts vary by model and age. Check the label on your own appliance and enter it for an exact answer.
Can a portable power station run a boiler circulator pump?
Yes. All 54 power stations in the Enough Watts data set can power it on its own. It takes at least 44 W of continuous output.
How long will a power station run a boiler circulator pump?
It depends on the battery. At 85% efficiency the smallest station that powers it, the BLUETTI Elite 10 Mini (128 Wh), gives about 2.5 h. The largest, the EcoFlow DELTA Pro Ultra X (12,288 Wh), gives about 9.9 days.
Does a boiler circulator pump need extra watts to start?
Its starting watts are not published, and motors often need 2 to 3 times their running watts to start. Without a published figure the site checks the start at the 44 W running figure, so leave headroom above that on your station.

Sources

Researched from these pages, then checked against them a second time.

  1. 007e ECM High-Efficiency Circulator - Taco Comfort Solutions maker product page, checked
  2. 0015e3 ECM High-Efficiency Circulator - Taco Comfort Solutions maker product page, checked

We read published figures and do the math; we do not measure appliances. The methodology states every formula on this page. Capacities are rated watt hours: 1,000 Wh rated gives 850 Wh usable at the default.