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Need help calculating the heat output for your room?
Guarantee Length: 1 Year Guarantee
Collection: Trident
SKU T500
GTIN:5056675434195
Dry Mass (kg):0.5kg
T500 Leak Sealer is used in domestic heating systems for sealing small, internal and inaccessible leaks and weeping joints. It is suitable for use with all metals, including aluminium. A seal works best in warm/hot circulated water and once it has been evenly dispersed, will be effective within 24 hours (this will vary depending on the rate of leakage and the temperature).
Cleansing
Circulate T300, with all the valves open, for a minimum of 2 hours after central heating has maintained working temperature but can be left in for up to four weeks.
Application
500ml of Leak Sealer is sufficient to treat a typical domestic system of up to 10 radiators, or 100 litres of system water. Larger systems will require more. After dosing is complete, the system should be operated normally for at least 15 minutes (heat is beneficial).
Open systems: Dose via F&E cistern, via a bypass feeder or use a dosing vessel.
Sealed systems: If the system is empty, add to any convenient part before filling. If full, inject via the filling loop, or other access point.
- Free delivery (UK Mainland, Northern Ireland/Highlands/Islands)
- Once dispatched, all orders are sent on a Next Working Day delivery service
- We deliver between 8am and 6pm
- Contact us to delay delivery/request a specific day
- Limitless (that's right, no time limit!) returns
- Free of charge: either we will collect/send a returns label, or we'll refund your postage costs.
- Returns (for reasons other than damage or faults) can only be accepted if the item is returned in the original packaging and has not been fitted or used in any way.
- Whilst all our products pass strict quality standards, on very rare occasions, you may find an item arrives damaged. We ask that when you receive your order, you inspect the packaging before signing and note any damage when signing for it or refuse the delivery, with damage as the reason. Please contact us if you have any issues.
- If you find damage after you have signed for your delivery, please contact us with images of the damage as soon as possible.
- Once the damage has been reported, we'll either replace the item completely free of charge or refund you in full.
-
How can I contact you?
You can message us on live chat. We aim to reply in one minute, between 9am - 5:30pm. After 5:30pm, we'll create a ticket and get back to you asap.
-
Where do you deliver?
We deliver to the whole UK and Northern Ireland - including the highlands and islands. We are currently unable to offer international delivery.
-
Who will deliver my order?
Our 4 main couriers for UK Radiators products are Royal Mail, DPD, APC and Tufnells. Your courier will depend on the size and weight of the items on your order.
For example, a pair of valves will be sent to you with Royal Mail, whereas a column radiator will be sent with Tufnells.
Tracking is provided for all orders dispatched from our warehouse.
If you order a Terma product, your item(s) will be coming directly from their warehouse.
The couriers they use are Stop Start and Parcelforce, and tracking is provided where possible.
-
Can I choose a specific time or day for my delivery?
If, for any reason, you would like to delay your delivery, please contact one of the customer service team as soon as you have placed your order, who will be able to assist you.
We are currently unable to request specific delivery time slots with our couriers.
Some of our couriers will advise you of a smaller time slot for your delivery, but unless otherwise stated, deliveries can take place any time between 8am and 6pm.
-
Can I upgrade my delivery?
Once dispatched, your order is sent on a next working day delivery service. This is the fastest available service, so we are unable to upgrade your delivery any further.
-
Can I send orders to a different address?
You can change the shipping address to a different address if your billing address matches what's registered against your payment method.
However, this can only be done when placing the order.
We are unable to change the delivery address after the order has been placed and dispatched. In this instance, the order would need to be cancelled and refunded, and a new order placed with the correct delivery address.
Watts & BTUs (British Thermal Units) Explained
What is a Watt?
Watts are our main unit of energy/power in the UK, commonly associated with lightbulbs and Home Energy performance certificates (EPCs).
What is a BTU?
BTUs are the unit of measurement used to portray a radiators heat output and a rooms heating requirement. 1 Watt is equal to 3.41 BTUs.
Why are they important?
We buy radiators to heat our homes, right? So, we need a way of knowing if a radiator is powerful enough to heat the room that we are shopping for - Watts and BTUs provide us with a value that makes its easier to compare radiators and ultimately choose the right one for our heating requirement.
Need help figuring out how much heat your room needs?
Our fast and easy-to-use BTU calculator can help you:
- Work out a heating requirement value (in BTUs & Watts) for your room
- Show you in-stock radiator recommendations that can fulfil this heat requirement
Delta (Δ) Ratings Explained
What is a Delta (Δ) Rating?
When discussing heat outputs, the Delta rating is the difference between the temperature of the water inside the heating system and the desired temperature of the room.
What does the value represent?
In simple terms, this value is about heat loss. Heating a room only works, if the radiator output exceeds the heat loss of the room.
We use this calculation to make it easy to choose a radiator that will have a heat output that exceeds the heat loss of the room when connected to your heating system type.
If you don't know the room heat loss, you can use our calculator to find out.
What Delta Rating should I use?
- Δ50 = Gas or oil boiler with a flow temperature of around 75°C and a return temperature of around 65°C.
- Δ30 = Low temperature systems e.g heat pumps.
Need help calculating the heat output for your room?
Guarantee Length: 1 Year Guarantee
Collection: Trident
SKU T500
GTIN:5056675434195
Dry Mass (kg):0.5kg
T500 Leak Sealer is used in domestic heating systems for sealing small, internal and inaccessible leaks and weeping joints. It is suitable for use with all metals, including aluminium. A seal works best in warm/hot circulated water and once it has been evenly dispersed, will be effective within 24 hours (this will vary depending on the rate of leakage and the temperature).
Cleansing
Circulate T300, with all the valves open, for a minimum of 2 hours after central heating has maintained working temperature but can be left in for up to four weeks.
Application
500ml of Leak Sealer is sufficient to treat a typical domestic system of up to 10 radiators, or 100 litres of system water. Larger systems will require more. After dosing is complete, the system should be operated normally for at least 15 minutes (heat is beneficial).
Open systems: Dose via F&E cistern, via a bypass feeder or use a dosing vessel.
Sealed systems: If the system is empty, add to any convenient part before filling. If full, inject via the filling loop, or other access point.
- Free delivery (UK Mainland, Northern Ireland/Highlands/Islands)
- Once dispatched, all orders are sent on a Next Working Day delivery service
- We deliver between 8am and 6pm
- Contact us to delay delivery/request a specific day
- Limitless (that's right, no time limit!) returns
- Free of charge: either we will collect/send a returns label, or we'll refund your postage costs.
- Returns (for reasons other than damage or faults) can only be accepted if the item is returned in the original packaging and has not been fitted or used in any way.
- Whilst all our products pass strict quality standards, on very rare occasions, you may find an item arrives damaged. We ask that when you receive your order, you inspect the packaging before signing and note any damage when signing for it or refuse the delivery, with damage as the reason. Please contact us if you have any issues.
- If you find damage after you have signed for your delivery, please contact us with images of the damage as soon as possible.
- Once the damage has been reported, we'll either replace the item completely free of charge or refund you in full.
-
How can I contact you?
You can message us on live chat. We aim to reply in one minute, between 9am - 5:30pm. After 5:30pm, we'll create a ticket and get back to you asap.
-
Where do you deliver?
We deliver to the whole UK and Northern Ireland - including the highlands and islands. We are currently unable to offer international delivery.
-
Who will deliver my order?
Our 4 main couriers for UK Radiators products are Royal Mail, DPD, APC and Tufnells. Your courier will depend on the size and weight of the items on your order.
For example, a pair of valves will be sent to you with Royal Mail, whereas a column radiator will be sent with Tufnells.
Tracking is provided for all orders dispatched from our warehouse.
If you order a Terma product, your item(s) will be coming directly from their warehouse.
The couriers they use are Stop Start and Parcelforce, and tracking is provided where possible.
-
Can I choose a specific time or day for my delivery?
If, for any reason, you would like to delay your delivery, please contact one of the customer service team as soon as you have placed your order, who will be able to assist you.
We are currently unable to request specific delivery time slots with our couriers.
Some of our couriers will advise you of a smaller time slot for your delivery, but unless otherwise stated, deliveries can take place any time between 8am and 6pm.
-
Can I upgrade my delivery?
Once dispatched, your order is sent on a next working day delivery service. This is the fastest available service, so we are unable to upgrade your delivery any further.
-
Can I send orders to a different address?
You can change the shipping address to a different address if your billing address matches what's registered against your payment method.
However, this can only be done when placing the order.
We are unable to change the delivery address after the order has been placed and dispatched. In this instance, the order would need to be cancelled and refunded, and a new order placed with the correct delivery address.
