Gas range,dryer and Gas heat

[shortcircuit1]

Hello,

When you are doing the load calcs for a multifamily or single family residential unit when they specify all the ranges,dryers are going to be gas and the water heaters are going to be gas instead of electric do you still include the gas range kw,dryer kw and water heater kw in your load calcs?

Another question i have read that if its a gas range you generally provide a 120v receptacle for ignition.Now where does the 120v receptacle getting power from?Small appliance circuit?Same question for the water heater as well.

Thanks,
shortcircuit.

 

[jumper]

The gas appliance electrical load is very and I have never included it.

The gas range rec. may be fed from a SABC. There is an exception for it in 210.52.

WH could be fed off any general purpose circuit I believe. Load is minimal.

 

[shortcircuit1]

The gas appliance electrical load is very and I have never included it.

The gas range rec. may be fed from a SABC. There is an exception for it in 210.52.

WH could be fed off any general purpose circuit I believe. Load is minimal.

If i understand you correctly you dont include the gas range & water heater kW in load calculations?And what about the gas dryer...Would you include kW for that in load calcs?

Yes i found the exception for the gas ranges..Thanks.

 

[jumper]

If i understand you correctly you dont include the gas range & water heater kW in load calculations?And what about the gas dryer...Would you include kW for that in load calcs?

Yes i found the exception for the gas ranges..Thanks.

For the dryer, I think the 1500VA for the laundry circuit is more than adequate.

The WH and range electrical is tiny. It is just the igniters.

 

[GoldDigger]

For the dryer, I think the 1500VA for the laundry circuit is more than adequate.

The WH and range electrical is tiny. It is just the igniters.

Spark igniters are a truly tiny load, but glo-bar heaters can add up.

Sent from my XT1585 using Tapatalk

 

[shortcircuit1]

Spark igniters are a truly tiny load, but glo-bar heaters can add up.

Sent from my XT1585 using Tapatalk

Is there any code reference to calculations when it comes to gas equipment(Ranges,Dryers and heaters or ovens)?

 

[infinity]

My gas convection range calls for a 15 or 20 amp individual branch circuit.

 

[jumper]

My gas convection range calls for a 15 or 20 amp individual branch circuit.

And the load is?

 

[infinity]

And the load is?

12.6 amps. Newer gas ranges use more than just electric ignition.

 

[jumper]

12.6 amps. Newer gas ranges use more than just electric ignition.

Oops. Did not know that. I am used to just the old plain ones. Durn modern technology.

 

[infinity]

Oops. Did not know that. I am used to just the old plain ones. Durn modern technology.

I didn't either until I recently put in a new kitchen with a nice fancy gas range. Surprisingly I decided to read the directions.

 

[jumper]

Surprisingly I decided to read the directions.

Why would go and do a crazy thing like that?

 

[shortcircuit1]

12.6 amps. Newer gas ranges use more than just electric ignition.

View attachment 18080

Thats interesting.In that case then will you just include 1.5kW(12A*120v) in the load calcs and run a individual 15A or 20A circuit with corresponding breaker in loadcenter?

 

[shortcircuit1]

I didn't either until I recently put in a new kitchen with a nice fancy gas range. Surprisingly I decided to read the directions.

http://products.geappliances.com/appliance/gea-specs/CGS990SETSS

This is one of the GE gas dryers and surprisingly under specs they call out for 15A at 120V.....

 

[jumper]

http://products.geappliances.com/appliance/gea-specs/CGS990SETSS

This is one of the GE gas dryers and surprisingly under specs they call out for 15A at 120V.....

That link seems to be a range.

 

[shortcircuit1]

That link seems to be a range.

My bad i was supposed to say range...Yes and it calls out for 15A circuit..

 

[shortcircuit1]

Spark igniters are a truly tiny load, but glo-bar heaters can add up.

Sent from my XT1585 using Tapatalk

I was looking at example D4(a) in annex D and for that example one half of the units have electric ranges and other were gas ranges..When doing for gas ranges they didnt even include anything for load calcs but with electric ranges they have different kVA...Now i m trying to understand do i have to worry about adding the nameplate amps required and corresponding kW i comeup with to my load calculations...:?:blink:

 

[jumper]

I was looking at example D4(a) in annex D and for that example one half of the units have electric ranges and other were gas ranges..When doing for gas ranges they didnt even include anything for load calcs but with electric ranges they have different kVA...Now i m trying to understand do i have to worry about adding the nameplate amps required and corresponding kW i comeup with to my load calculations...:?:blink:

Without the actual model type it is impossible to say.

Plain jane gas ranges with a 1A load or fancy ones with a 12A load.

The annex is prolly using plain jane models I assume.

 

[shortcircuit1]

Without the actual model type it is impossible to say.

Plain jane gas ranges with a 1A load or fancy ones with a 12A load.

The annex is prolly using plain jane models I assume.

I wonder when you start new design you wont have model to do load calcs..I want to see if anyone who has done load calcs with gas ranges have anything to say...:blink:

 

[hbiss]

I was looking at example D4(a) in annex D and for that example one half of the units have electric ranges and other were gas ranges..When doing for gas ranges they didnt even include anything for load calcs

That's because gas appliances use such a negligible amount that they don't have to be considered.

This is one of the GE gas dryers and surprisingly under specs they call out for 15A at 120V.....

They are only saying that the appliance can be supplied by a 15A circuit. READ THE NAMEPLATE on gas dryers and ranges and use the actual numbers if it makes you happy. But according to Code you don't have to.

-Hal