Galley upgrade, low power induction hob

[Daverw]

Just fitted new Vango dual Sizzle induction cooker top, fits perfectly on top of gimballed gas oven top, each has 800w so easily for inverter to handle. At £94 well made with 2.5m power lead. only have gas now for oven which really used following microwave installed last year.

 

[roaringgirl]

We have the same, but went for 2 singles so that if one breaks we are still able to eat.

 

[geem]

We have 2000w single. Runs fine on a 24v boat with 3kw inverter and lithium. The kettle gets used at 1800w.

 

[Daverw]

We tried a full 2kw one, but on reduced power it cycles from full to off to do this, our 1.6kw inverter did not like this although it did cope mostly, these reduced power ones give it an easier time, we don’t actually cook that much on full power at home. Using these makes it a practical option on smaller boats

 

[geem]

We tried a full 2kw one, but on reduced power it cycles from full to off to do this, our 1.6kw inverter did not like this although it did cope mostly, these reduced power ones give it an easier time, we don’t actually cook that much on full power at home. Using these makes it a practical option on smaller boats

The 2kw induction hobs have the 1000w to 2000w in 100w power stages. Below 1000w they cycle.

 

[Kelpie]

We've been using the double Sizzle for two years now. You quickly get used to the low power. And it stops you from burning the onions
The other day SWMBO lit the gas grill without lifting the Sizzle off first. It had to happen some day I guess. Amazingly it's still working, even though the underside and cooling fan are all melted.
Its days must be numbered now so she's going to buy a spare on her next trip home.

 

[roaringgirl]

We've been using the double Sizzle for two years now. You quickly get used to the low power. And it stops you from burning the onions
The other day SWMBO lit the gas grill without lifting the Sizzle off first. It had to happen some day I guess. Amazingly it's still working, even though the underside and cooling fan are all melted.
Its days must be numbered now so she's going to buy a spare on her next trip home.

Get a pair of singles instead for better chance of still being able to cook!

 

[wonkywinch]

Just fitted new Vango dual Sizzle induction cooker top, fits perfectly on top of gimballed gas oven top, each has 800w so easily for inverter to handle. At £94 well made with 2.5m power lead. only have gas now for oven which really used following microwave installed last year.

Odd that Amazon say "This product is subject to specific additional safety warnings - Do not use indoors".

Maybe they think it uses charcoal!

 

[roaringgirl]

The world seems to be rife with inappropriate safety-warnings. I'm buying a gas oven at the moment, the seller has told me it's illegal to install it with a flexible hose, despite it needing to be gimballed on a boat!

 

[geem]

We've been using the double Sizzle for two years now. You quickly get used to the low power. And it stops you from burning the onions
The other day SWMBO lit the gas grill without lifting the Sizzle off first. It had to happen some day I guess. Amazingly it's still working, even though the underside and cooling fan are all melted.
Its days must be numbered now so she's going to buy a spare on her next trip home.

The advantage of a 24v boat and a big inverter. We don't need to limit ourselves to low power cooking. The main use at high power is the kettle. It takes the same Wh to boil but obviously longer at low power. Most cooking is done at 1000/1200w or below apart from stir fry. 1800w

 

[lustyd]

each has 800w so easily for inverter to handle

That would give us less than an hour of cooking with our house bank (2x110AH AGMs), and even then we'd have to turn off the fridge and avoid using nav equipment!

 

[Kelpie]

Get a pair of singles instead for better chance of still being able to cook!

I thought about that, bit I'm not sure they would sit as nicely on top of the gas hob. Even if they were the same size in total I think they would probably rock a bit.

I have wondered about adding a single higher powered hob but there really isn't anywhere to put it. Galley worktop space is a real lacking in our boat

 

[Kelpie]

That would give us less than an hour of cooking with our house bank (2x110AH AGMs), and even then we'd have to turn off the fridge and avoid using nav equipment!

Well yes you wouldn't just add this to an existing battery setup. That would be nuts.

When we upgraded to electric cooking, we left our 3x110Ah batteries alone. But added a 271Ah lithium battery which I was able to build for just over £400. If I'd been paying UK prices for bottled gas it would have already paid for itself- although it probably wouldn't have been sunny enough for the project to make sense

I've finally decided to upgrade the lithium yet again, and have ordered the components for a second battery, 280Ah, this one will work out a little more expensive but that's mostly because I'm in a relatively remote location.

 

[Kelpie]

The advantage of a 24v boat and a big inverter. We don't need to limit ourselves to low power cooking. The main use at high power is the kettle. It takes the same Wh to boil but obviously longer at low power. Most cooking is done at 1000/1200w or below apart from stir fry. 1800w

Seeing as I building the new lithium system from scratch I gave serious consideration to 24v. It was primarily going to power new equipment like a freezer and inverter.
The main thing was I would have had to buy eight cells instead of four so there was a huge increase in cost (but with increased capacity, of course). Didn't really have the money to do that at the time.
It would against have made things much harder in general as everything else on the boat is 12v.

In the end, the main reason for choosing the Sizzle wasn't really the low power output, it's the small physical size which lets it sit directly on the gas cooker with no modifications at all.

 

[geem]

Seeing as I building the new lithium system from scratch I gave serious consideration to 24v. It was primarily going to power new equipment like a freezer and inverter.
The main thing was I would have had to buy eight cells instead of four so there was a huge increase in cost (but with increased capacity, of course). Didn't really have the money to do that at the time.
It would against have made things much harder in general as everything else on the boat is 12v.

In the end, the main reason for choosing the Sizzle wasn't really the low power output, it's the small physical size which lets it sit directly on the gas cooker with no modifications at all.

Our cooker is a 3 ring job. It quite large. No problem fitting the induction hob on top.
The benefit of 24v is the BMS is only handling half the amps. Its not stressed. When I build the second li5hium battery later this year, we will reduce the load on the BMS further. It should provide additional resilience and keep FET temperature down as well a battery cell temperature.
We have a number of 12v devices in the boat. They just run from 24/12v droppers. Things like the LED lamps that are 9/30v rated run more efficiently at 24v than 12v. Motors tend to be more efficient at 24v. Cable sizes can drop to 1/4 of the cross section for the same resistance. If you are doing a lot of rewiring, the cost saving in cable can be quite considerable.

 

[Kelpie]

One of the things in looking forward to when I build the second battery is the halving of the current. In practice we will now be able to use whatever we want- at the moment you can't use both rings and the air fryer together. But it's pretty rare to need that anyway.

Both packs will have their own 200A JBD BMS.

I'll have to look in to the best way to combine them, hoping that a single Class-T fuse will be acceptable. Could possibly use MRBFs on each pack too but it's all extra connections...

 

[geem]

One of the things in looking forward to when I build the second battery is the halving of the current. In practice we will now be able to use whatever we want- at the moment you can't use both rings and the air fryer together. But it's pretty rare to need that anyway.

Both packs will have their own 200A JBD BMS.

I'll have to look in to the best way to combine them, hoping that a single Class-T fuse will be acceptable. Could possibly use MRBFs on each pack too but it's all extra connections...

I will be installing a second, smaller battery, later this year. JK 200A BMs with 2A active balance, its own smart shunt and class T fuse. It will give me two independent banks that will normally be combined. Just providing some redundancy and extra capacity

 

[gregcope]

I have similar - two 12V batteries with their respective 200A JDB BMS. De-tuned to 175A each. Should run the 3000va inverter at full whack (Ie 3kW).

 

[Pete7]

Get a pair of singles instead for better chance of still being able to cook!

Tricky to find a pair of induction hobs that will sit in the 450mm width of the previous gas cooker. The Vango is 420mm so easy enough to fit and gimbal for use at sea. The original 1500w single induction hob lives underneath as a spare.

 

[geem]

I have similar - two 12V batteries with their respective 200A JDB BMS. De-tuned to 175A each. Should run the 3000va inverter at full whack (Ie 3kW).

Yep, my system is 24v so we can run the 3kw inverter full whack from the single battery. About 120A. We generally don't run more than about 80A but with second 24v lithium battery, the load will be shared, so a further reduction in BMs load and more resilience