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Stack, the smarter choice for dairy hot water

Save thousands by making the simple switch to gas in your dairy shed.

With the affordable and efficient Longveld Stack system you will enjoy power savings immediately.

The ability to heat 600 litres of water to 85ºC in less than one hour means you have hot water when you need it. The system can be connected to your heat recovery system for further power savings.

Contact us now for details about a dealer near you”

The Benefits of Gas

Longveld has revolutionised how dairy farmers heat water using gas instead of electricity to clean their milking plant and milk vat. Longveld has launched a new improved design of their dairy hot water system called the Longveld Stack. This combines your hot water cylinder and dump tank in one compact and secure unit, minimising pipework. The patent-pending design retains Bosch’s world-class gas technology. Benefits remain numerous.

1. HOT WATER WHEN YOU NEED IT 24/7

Longveld Stack is available in 3 sizes – 400, 600 and 1,000 litres. You only need one unit for all your daily cleaning operations because the system will heat water quickly, as and when you need it. For instance the 600 model will deliver 600 litres of hot water at 85°C in around an hour. You aren’t restricted by the common electric heating problems of power outages or all-day cylinder heating times. You can say goodbye to the need for multiple hot water cylinders.

2. IMMEDIATE POWER SAVINGS

Dairy farmers are saving up to 45% of their water heating costs with Longveld Stack. Many farmers are using more hot water after installing the Longveld Stack, particularly during calving. This is because for the first time they don’t have to restrict their use to ensure they have enough for their plant and vat cleaning, but they are still saving on their water heating costs.

View Power Savings Estimate >>

3. SMALL, FLEXIBLE FOOTPRINT

The Longveld Stack has a small footprint diameter of 1.05m to 1.25m, depending on the model size, incorporating both the hot water cylinder and dump tank. Pipework is minimal because the components nest together. The cylinder and dump tank components rotate independently so that inlets and outlets will fit any existing shed layout.

4. CONNECTS TO YOUR HEAT RECOVERY FOR FURTHER SAVINGS

Longveld Stack can be connected to your heat recovery system to further enhance cost savings. The sooner you get it installed the quicker the payback.

5. SIMPLE PROGRAMMABLE SETTINGS

You can set multiple start times on the programmable controller to start the heating cycle so the water is automatically up to temperature exactly when you need it. That means less time at the shed, more time for breakfast.

6. INCREASED SAFETY AND NUTRIENT SECURITY

Longveld Stack is child-resistant and tamper-resistant with lockable entry ports. The all-in-one enclosed design prevents the entry of insects, rodents and birds into your dump tank, providing greater food security. The water cylinder has a removable lid for farmers who need to thoroughly clean and sanitise their plant. The system is designed to seismic requirements.

7. LONG LIFE

The tank components have no crevices so you don’t get seam cracking. The hot water cylinder is fabricated from corrosion resistant 2205 stainless steel which will last the lifetime of your shed.

8. INSTANT 55˚C WATER ON TAP

The days of cold water clean-up after a winter vet visit are over. As an optional extra, Longveld can supply a 55°C instant hot water supply tap and hose which completely eliminates the hazard of carrying buckets of 85°C water around the shed. This on-demand supply operates independently from the cylinder supply. It’s perfect for cleaning calf feeding equipment.

9. INSTALLATION WON’T DISRUPT MILKING

Longveld Stack can be installed without any disruption to your milking routine so it can be installed year-round. The whole system takes two days to install and these don’t need to be consecutive. On day one all of the gas pipe work is fabricated so the site can be certified by a gas inspector. On day two the hot water system is connected between milking.

10. ELIMINATES INEFFECTIVE CLEANING CAUSED BY SHORTAGE OF HOT WATER

Industry guidelines require plant wash cycles to use water of sufficient volume and temperature to allow optimal agitation and detergent action. Temperatures need to be high enough to stop fat and protein redepositing on plant surfaces. If you don’t have time to heat enough water for each wash cycle you risk getting increased bacterial growth. Longveld Stack’s rapid heating eliminates this problem. Longveld Stack delivers all the hot water you need, at the right temperature, when you want it.

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Specifications

Retrofit Option

Gas hot water is also available as a retrofit kit that fits to your existing hot water cylinder/s. It uses the Bosch gas retrofit dairy kit which includes a Bosch 32 continuous flow commercial gas water heater, a recirculation pump, a controller for programming hot water schedules, and a patented valve that allows an existing port to be used for both entry and exit of water.

Gas Installation

The gas installation is different for each farm depending on dairy shed layout and location of the farm. This will be assessed for you and the installation will be priced accordingly. LPG is supplied in cylinders to suit your application and on a rotation that suits your requirements. Depending on location you may be able to utilise one or two 210kg (411L) cylinders complete with a changeover regulator. These gas cylinders are filled on-site by a bobtail truck. Alternatively you will require a bank of 45kg (88L) cylinders with a changeover regulator and manifold.

We can supply manifolds, regulators and a platform to securely house the bottles. We recommend and can put you in touch with Elgas, our preferred gas supplier.

Capacity, L 400 600 1,000
Height, m 1.98 2.25 2.50
Base diameter, m 1.05 1.05 1.25
Diameter including
boiler housing, m
1.45 1.45 1.61
Longveld Gas Hot Water Customer Photo

...I SAW THE
ECONOMICS OF IT

Carl and Ally Steiner
Milking 900 Jersey/Friesian cross cows

Longveld Gas Hot Water Customer Photo

IT IMMEDIATELY CUT MY ENERGY BILLS IN HALF

Grant Rowe
Milking 550 Jersey/Friesian cross cows

Longveld Gas Hot Water Customer Photo

WE DON’T HAVE TO WORRY, HOT WATER IS ALWAYS THERE

Craig & Kym McCullough
Milking 610 Friesian – split into two herds

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153 - 157 Ellis Street,
Hamilton, NZ 3204
0800 566 483

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