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Leisure Products (Bolton) Ltd
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General information & FAQ’s

Gas Types

There are two common types of LPG (Liquid Petroleum Gas), propane and butane. Butane gas is traditionally in blue cylinders and burns with a higher calorific value than propane, which produces more energy for a given supply pressure than propane. Propane gas is traditionally in red cylinders and has a significantly lower boiling point than butane and therefore performs better in colder conditions. Many modern appliances perform equally well on both gas types with little or no adaptation required. All gas cylinders require a regulator to control the flow of gas. Traditionally these are not interchangeable between propane and butane. The main confusion for LPG users arises not between the different gas types but between the numerous different cylinder types available on the market, which all require different regulators.  Camping Gaz cylinders contain butane gas and are widely available throughout the UK and Western Europe, but not Scandinavia where the Primus bottles are more common. Camping Gas cylinders require clip on regulators which are not interchangeable with other gas cylinders. Calor gas bottles are available in both propane and butane and are widely available in the UK and Europe. Many other brands of gas cylinder such as Flogas are available in different geographic areas and these are i interchangeable with calor gas cylinders, although some dealers will only exchange same brand bottles.

Gas Consumption

When setting off on a long voyage, one question often asked is ‘how much gas will I need for the journey?’ Here is how to calculate your requirements: The gas consumption on a Neptune 4500 is as follows: Hobs (each)     1.65 kW       119 g/hr Grill                   1.65 kW       119 g/hr Oven                  1.25 KW      92 g/hr                                                                    Total                  6.28 kW      455 g/hr
These rates are the same for butane @ 28 mbar and propane@ 37 mbar
Best guess cooking times: A cooked breakfast plus hot drink                                 Both hobs on for 20 minutes plus the grill for 15 Dinner - A light meal plus hot drink   One hob and grill for 15 minutes Main meal - Meat + veg plus hot drink   Oven for 1 hr 40 minutes (¾ rate), both hobs 45 mins (½ rate) Hob usage   =  1 hr 40 minutes or 1.67 hrs      ((2 x 20) + (1 x 15) + (2 x 45) / 2) Grill usage   =  30 minutes or 0.5 hrs               (15 + 15) Oven usage  =  1 hr 15 minutes or 1.25 hrs      (1hr 40 mins x 0.75) Gas consumed = 371 grams     ((1.67 x 119) + (0.5 x 119) + (1.25 x 91)) So, a 2.75kg bottle would last about 7.5 days at this rate of consumption. Please note that these calculations are only a guide for cooking times and power rates to show how to calculate figures.

Carbon Monoxide (CO)

CO is a by-product of combustion appliances burning fossil fuels and has almost the same density as air. CO has no smell or taste and for this reason it is sometimes referred to as the ‘silent killer’. CO is poisoning occurs by inhalation. The most recognisable symptoms of CO poisoning are:   - Headaches - Vomiting - Tiredness and confusion - Stomach pain - Shortness of breath and difficulty breathing CO poisoning is very difficult to diagnose because symptoms are often similar to common illnesses like flu and food poisoning. For a 20 year period, up to February 2014, 30 boat realated CO fatalities were recorded. The largest number of fatalities was caused by portable petrol generators. Top tips for keeping safe!     - Ensure fuel burning appliances are correctly installed    - Ensure correct ventilation is provided for the installed appliance  - Use a gas safe engineer  - Ensure the appliances are regularly serviced  - Use the appliance in accordance to the manufacturers instructions  - If the appliance appears to be faulty - get it fixed!  - Install a CO alarm and test is regularly  - Know the symptoms of CO poisoning
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Leisure Products (Bolton) Ltd
Design   •   Develop   •   Manufacture  

General information & FAQ’s

Gas Types

There are two common types of LPG (Liquid Petroleum Gas), propane and butane. Butane gas is traditionally in blue cylinders and burns with a higher calorific value than propane, which produces more energy for a given supply pressure than propane. Propane gas is traditionally in red cylinders and has a significantly lower boiling point than butane and therefore performs better in colder conditions. Many modern appliances perform equally well on both gas types with little or no adaptation required. All gas cylinders require a regulator to control the flow of gas. Traditionally these are not interchangeable between propane and butane. The main confusion for LPG users arises not between the different gas types but between the numerous different cylinder types available on the market, which all require different regulators.  Camping Gaz cylinders contain butane gas and are widely available throughout the UK and Western Europe, but not Scandinavia where the Primus bottles are more common. Camping Gas cylinders require clip on . regulators which are not interchangeable with other gas cylinders. Calor gas bottles are available in both propane and butane and are widely available in the UK and Europe. Many other brands of gas cylinder such as Flogas are available in different geographic areas and these are interchangeable with calor gas cylinders, although some dealers will only exchange same brand bottles.

Gas Consumption

When setting off on a long voyage, one question often asked is ‘how much gas will I need for the journey?’ Here is how to calculate your requirements: The gas consumption on a Neptune 4500 is as follows: Hobs (each)     1.65 kW       119 g/hr Grill                   1.65 kW       119 g/hr Oven                  1.25 KW      92 g/hr                                                                    Total                  6.28 kW      455 g/hr
These rates are the same for butane @ 28 mbar and propane@ 37 mbar
Best guess cooking times: A cooked breakfast plus hot drink         (Both hobs on for 20 minutes plus the grill for 15) Dinner - A light meal plus hot drinks     (One hob and grill for 15 minutes_ Main meal - Meat + veg plus hot drink (Oven for 1 hr 40 minutes (¾ rate), both hobs 45 mins (½ rate)) Hob usage  = 1 hr 40 minutes or 1.67 hrs      ((2 x 20) + (1 x 15) + (2 x 45) / 2) Grill usage   =  30 minutes or 0.5 hrs                        (15 + 15) Oven usage  =  1 hr 15 minutes or 1.25 hrs      (1hr 40 mins x 0.75) Gas consumed = 371 grams        ((1.67 x 119) + (0.5 x 119) + (1.25 x 91)) So, a 2.75kg bottle would last about 7.5 days at this rate of consumption. Please note that these calculations are only a guide for cooking times and power rates to show how to calculate figures.

Carbon Monoxide (CO)

CO is a by-product of combustion appliances burning fossil fuels and has almost the same density as air. CO has no smell or taste and for this reason it is sometimes referred to as the ‘silent killer’. CO is poisoning occurs by inhalation. The most recognisable symptoms of CO poisoning are:   - Headaches - Vomiting - Tiredness and confusion - Stomach pain - Shortness of breath and difficulty breathing CO poisoning is very difficult to diagnose because symptoms are often similar to common illnesses like flu and food poisoning. For a 20 year period, up to February 2014, 30 boat related CO fatalities were recorded. The largest number of fatalities was caused by portable petrol generators. Top tips for keeping safe!     - Ensure fuel burning appliances are correctly installed    - Ensure correct ventilation is provided for the installed     appliance  - Use a gas safe engineer  - Ensure the appliances are regularly serviced  - Use the appliance in accordance to the manufacturers     instructions  - If the appliance appears to be faulty - get it fixed!  - Install a CO alarm and test is regularly  - Know the symptoms of CO poisoning