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rogerc

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Everything posted by rogerc

  1. rogerc
    Thanks Tracy unfortunately that number is dead
  2. rogerc
    Does anyone have an alternative number to 07723 330860. They provide a very good service I used 2 years ago but I’ve been trying to make contact for a week but had no response. I have heard that it may have changed hands recently Roger
  3. rogerc
    any system depends on the boiler and radiators being matched. a single pipe system is poor if you have 10+ radiators getting progressively cooler. but it is quite adequate for 4-6 radiators and cheaper. its a balance.
  4. rogerc
    i have a £30 heat exchanger and it heats my 65 ft boat to 28C in 3-4 hours when the outside temp is 10C a big saving on fuel cost. i also have 2 calorifiers (second hand one for £50) i only use my ex hire boat from March to end October so have only used by Alde gas boiler a couple of times in the last 10 years,
  5. rogerc
    on a boat i would just use a single pipe all round the boat no need for flow and return. and the feed and expansion are usually a common pipe. your boiler will be a third or quarter of a 3 or 4 bedroom house! if you cruise a lot put in a heat exchanger for £30 to use waste engine heat and isolating valves for the heating and hot water so you can set priorities.
  6. rogerc
    i have 3x 110Ahr new domestic batteries and a smaller starter battery. i have a 295 W solar panel with a 20 A MPPT charge Controller that has a feature to turn on a load for an hour before sunrise or an hour after sunrise, (probably for lights). i lay the boat up for winter with all batteries fully charged; and the solar keeps the domestic batteries well topped up through out. but last spring the starter battery was down to 11.1V. so I'm thinking of using the load timer to top up the starter battery for an hour daily after sunset when the voltage will probably be around 12.5 V, I'll include a 10A fuse with 4m of 16A cable. will this work? and will it cause any problems/damage? some years i have permanently connected the batteries together with no problem, but if there was i would then have all batteries flat!
  7. rogerc
    i have a PWM controller. does the same current from the panel flow to the battery but at a lower voltage and so lower power?
  8. rogerc
  9. rogerc
  10. rogerc
    it takes so long to get my lid off that it will have run away. dead or alive.
  11. rogerc
    what did you use and how long ago was it?
  12. rogerc
    thanks Reg I'm not impressed with your solution that seems to only last 2 years. i black my boat every 3 years and do the water tank at the same time. and would like to do it less often particularly the water tank. i use 2 coats of Black Jack after pressure washing and its been reasonably good after 3 years, so Vatcan would be a retrograde step. does anyone have a better solution? I'm beginning to think in 3 years time a tank liner would be the solution
  13. rogerc
    thanks very much for the suggestions particularly for the brackets. does anyone have any views on whether serial or parallel connection is better. also what % of the rated out put you get in winter and summer at midday and a couple of hours before sunset?
  14. rogerc
    i had a 100W flexible fixed panel that got water damage after 3 years. and want to replace it. i would like a 50-100% increase in battery charge. i do a 6-8 week cruise in the summer and occasional long weekend cruises between April and October (Inclusive). initially i thought of getting a slightly larger panel with tilting mounting, but I'm beginning to think 2 fixed panels would do the same for a similar cost. i stuck my original panel which seemed good but water got under it and eventually all the paint became a soggy mess and the panel failed. I'm not keen on drilling & screwing to the roof as water might get through, so thinking of magnets. and I'm wondering about whether to have them connected serially or in parallel. parallel seems better for summer and serial for winter. and i want to avoid too many connections and keep it simple. i would welcome suggestions on the best panels and mounting systems and connections.
  15. rogerc
    wat is the best bitumen/paint for water tanks in terms of value and ease of use? i have a 65 ft narrow boat with a 1,000 litre tank
  16. rogerc
    Thanks I’ll have a check for the dry joint and have a proper look at the diodes
  17. rogerc
    Sorry I should have made that clear. thanks for your input
  18. rogerc
    The diodes are inside the alternator
  19. rogerc
    I have a similar problem with my 127A which I think is an internal alternator fault. The charge light comes on intermittently and the voltage goes up to 15-16v when the light comes on the exciter terminal is at 10.5 v and the output 14.7v hence light on light 💡. I have had the alternator fully checked no issues reported. It was a pretty sophisticated tester JBT3 I think with a diagnostic printout. Said in good good regulator and diode bridge. condition I fitted a new regulator just in case but it made no difference. I think there are some diodes in the exciter circuit. Can I test them? Can I get replacements. I am concerned because diodes rarely have intermittent faults. The alternator is charging well. Maybe overcharging. To stop the buzzer I have fitted a switch to short the bulb it doesn’t seem to affect the alternator but gives me peace☺️ many suggestions welcome
  20. rogerc
    thanks for all your input. i take the point about rigid Vs flexible but having flexible suits me better at the moment. i like the idea of sticking it with strips along the curve to allow drainage with Stikaflex. and i will ask the supplier what they recommend so as not to invalidate the 5 yr warranty. more suggestions welcome too.
  21. rogerc
    my solar panel failed after 3 years and i think the problem was water between it and the steel and all the paint came off in a sticky mess below the panel. what would people recommend to stick on the new panel?
  22. rogerc
    i believe the 40A line fuse by the starter may have something to do with it
  23. rogerc
    i use distilled water from the tumble dryer -important to filter the fluff out and dont have any problems with battery life
  24. rogerc
    if the side tanks are starting to heat before the calorifier is hot, there's definitely a circulation problem. i get hot water in half an hour from a 42HP engine
  25. rogerc
    my system has 2 stop valves one for the radiators and one for the calorifier. i also fitted a second calorifier so now have enough hot water for 8 x 5 minute showers each morning or for 2 showers for 3 days. the Alde only heats one. 10-20 minutes for enough for 2 showers. and i fitted a heat exchanger (£25 on ebay) so the waste engine heat heats the radiators. it takes 2-4 hours to heat the 65 ft boat from 10C to 26C and added a heater from a scrap van to dry clothes etc. To avoid overloading the water pump i added a second pump into the primary loop that i turn on once the engine has heated to 70+C. saves a lot of gas when the engine is running.
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