HUD or heated windscreen

[Snoodini]

Originally Posted by Clan

exactly , a volvo has never needed one it's just a Marketing "thing" ... It already has an electric element in the heating system for quick warm air .

I don't believe this is true. Can you point to a part number for this supposed electric heating element?

I have a T8 and if I drive in the cold, on electric only and I do not enable the auxiliary heater (petrol fired) then I get no cabin heat at all.

[Philip Fisher]

Originally Posted by Clan

exactly , a volvo has never needed one it's just a Marketing "thing" ... It already has an electric element in the heating system for quick warm air .

I also am not sure that this is true.

[S90]

Originally Posted by Clan

exactly , a volvo has never needed one it's just a Marketing "thing" ... It already has an electric element in the heating system for quick warm air .

That’s cobblers! Although, why Volvo can’t offer a heated windscreen and HUD is beyond me!

[volvocat]

Originally Posted by Clan

exactly , a volvo has never needed one it's just a Marketing "thing" ... It already has an electric element in the heating system for quick warm air .

I first came across the heated windscreen in a Ford Galaxy c.1996.
I read somewhere it was a Ford invention which, considering Ford's subsequent Volvo ownership, makes sense of its later appearance as a Volvo feature.

But it is not just for cold & frosty mornings - it helps clear condensation too if, for example, when you (and maybe several passengers) get in with wet clothes/coats. It deals with it much faster than the air vents alone can manage - and this can happen at any time - not just first thing in the morning.

[Clan]

Originally Posted by volvocat

I first came across the heated windscreen in a Ford Galaxy c.1996.
I read somewhere it was a Ford invention which, considering Ford's subsequent Volvo ownership, makes sense of its later appearance as a Volvo feature.

But it is not just for cold & frosty mornings - it helps clear condensation too if, for example, when you (and maybe several passengers) get in with wet clothes/coats. It deals with it much faster than the air vents alone can manage - and this can happen at any time - not just first thing in the morning.

Thats is an old wives tale , Ford had nothing to do with the heated windscreen which has been around about 55 years now , Invented By Triplex . The first car which used the principle of the wires in-between 2 sheets of Laminated glass is a very early 60's rover back window . they were common place for windcreens in Rally cars by the mid 1960's

[Clan]

Originally Posted by S90

That’s cobblers! Although, why Volvo can’t offer a heated windscreen and HUD is beyond me!

all new volvo models since 2004 have a PTC electric element in the heater ...

[Philip Fisher]

Originally Posted by Clan

Thats is an old wives tale , Ford had nothing to do with the heated windscreen which has been around about 55 years now , Invented By Triplex . The first car which used the principle of the wires in-between 2 sheets of Laminated glass is a very early 60's rover back window . they were common place for windcreens in Rally cars by the mid 1960's

Yes but you are not comparing apples with apples here.

Heated rear screens have been around for, as you rightly point out, ages. The wires were very obvious and would not be suitable for a front windscreen on a regular production road car.

Heated front windows were brought to the mass market in the UK by Ford in probably the mid to late nineties. I guess the key bit of tech was getting the wires thin and unobtrusive enough so as to be broadly acceptable to most drivers. Volvo was (or was soon to be) owned by Ford and I struggle to see that there was not some technology transfer between the companies.

The assertion that there were viable heated front screens on the mass market in the UK from the 60s is - I would suggest - wrong.

[Philip Fisher]

Duplicated deleted.

[Philip Fisher]

Originally Posted by Clan

exactly , a volvo has never needed one it's just a Marketing "thing" ... It already has an electric element in the heating system for quick warm air .

So I have just googled PTC heater and came across this:-

https://www.volvoclub.org.uk/faq/Eng...html#PTCNipple

It describes the PTC heater as a small heater which heats air coming out of the crankcase vent and prevent throttle icing. I am slightly lost in the detail as I am not familiar with this part of the car. I have, however, found nothing which describes the PTC element as "an electric element in the heating system for quick warm air". It seems to be a small heater which aids the function of the car in very cold weather by preventing a very specific part of the cars breather system from icing up.

But maybe I am wrong. Perhaps Clan you can reference a document which describes the PTC heater in the terms you have used as a heater for quick warm air?

[Whyman]

Originally Posted by Philip Fisher

Yes but you are not comparing apples with apples here.

Heated rear screens have been around for, as you rightly point out, ages. The wires were very obvious and would not be suitable for a front windscreen on a regular production road car.

Heated front windows were brought to the mass market in the UK by Ford in probably the mid to late nineties. I guess the key bit of tech was getting the wires thin and unobtrusive enough so as to be broadly acceptable to most drivers. Volvo was (or was soon to be) owned by Ford and I struggle to see that there was not some technology transfer between the companies.

The assertion that there were viable heated front screens on the mass market in the UK from the 60s is - I would suggest - wrong.

To agree with Clan I can remember my father had a XJ6 in the early 70’s with a heated rear screen but the wires were only visible if you caught the sunlight in the right direction or with Polaroid sunglasses. Years ahead of use in front screens but perhaps it had to be developed to overcome this flaw.