Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Riello RDB 2.2 electricity usage

  • 17-09-2015 6:54pm
    #1
    Sensored
    Registered Users, Registered Users 2 Posts: 3 ✭


    Hello. My first post here. Does anyone have any experience with measuring the electrical energy fed to a Riello RDB 2.2 burner on a Firebird C35 oil boiler? I am looking to figure out a shape profile from start-up of the electrical energy consumed by the burner. My thoughts are that the maximum watt-hour usage occurs, certainly in the first hour of operation, and then modulates on and off, just re-heating the water, back up to the required temperature. My figures for the second hour are between 22 Wh and 28 Wh, while the maximum Whs for the first hour was recorded as 90 Wh. What I would like to know is, if possible, how the 90 Whs are spread over the first hour, for example, would 45 Wh be used in the first half-hour do you think? This in relation to a two storey, detached house with 3 or 4 bedrooms. I don't know how many radiators (or sizes) were in use. Just wondering what a typical elec. energy profile would look like, especially in the first hour. Any ideas?


Comments

  • #2
    Wearb
    Moderators, Home & Garden Moderators Posts: 6,378 Mod ✭✭✭✭Wearb


    It will totally depend on the number of zones on and the heat demand for those zones.
    For a system with all zones calling for heat and an outside temperature of below 5°, I would expect the burner to be running for 100% of the first hour.
    That assumes a cold startup and a house with normal heat loss.

    Please follow site and charter rules. "Resistance is futile"



  • #3
    Wearb
    Moderators, Home & Garden Moderators Posts: 6,378 Mod ✭✭✭✭Wearb


    This might be of help. Note there were only 4 rads and a lukewarm cylinder on at startup.

    Please follow site and charter rules. "Resistance is futile"



  • #4
    agusta
    Closed Accounts Posts: 1,590 ✭✭✭agusta


    Sensored wrote: »
    Hello. My first post here. Does anyone have any experience with measuring the electrical energy fed to a Riello RDB 2.2 burner on a Firebird C35 oil boiler? I am looking to figure out a shape profile from start-up of the electrical energy consumed by the burner. My thoughts are that the maximum watt-hour usage occurs, certainly in the first hour of operation, and then modulates on and off, just re-heating the water, back up to the required temperature. My figures for the second hour are between 22 Wh and 28 Wh, while the maximum Whs for the first hour was recorded as 90 Wh. What I would like to know is, if possible, how the 90 Whs are spread over the first hour, for example, would 45 Wh be used in the first half-hour do you think? This in relation to a two storey, detached house with 3 or 4 bedrooms. I don't know how many radiators (or sizes) were in use. Just wondering what a typical elec. energy profile would look like, especially in the first hour. Any ideas?

    A rdb 2.2 burners motor is 90 watts
    In a rdb burner the motor runs and then the motor itself supplies the power to the control box which supplies power to everything else,so for your calculations the only watts used are from the motor running.
    so if the motor runs for one hour it 90 watts,
    if it runs for 30 mins its 45 watts

    If your figures for the second hour were between 22 and 28watts,this would mean your burner ran between 14.5 to 18.5 mins


Advertisement